What Is The Opposite of Sister?

The antonyms of “sister” are words that represent the opposite of this familial relationship. While a sister is typically a female sibling, the antonyms describe individuals who do not share the same sisterly bond.

Antonyms of “sister” can include terms like “brother” or “brother-in-law,” which denote a male sibling or a spouse’s male sibling, respectively. These words highlight the contrasting roles or connections that exist within a family dynamic.

Understanding the antonyms of “sister” provides clarity on the diverse relationships that can be found within families and the various ways individuals can be connected to one another. Exploring these opposite terms broadens our vocabulary and comprehension of familial ties beyond the traditional sisterly bond.

Example Sentences With Opposite of Sister

Antonym	Sentence with Sister	Sentence with Antonym
Stranger	My sister and I have a close bond.	I had never seen the person before; they were a stranger.
Enemy	I will always support my sister through thick and thin.	We were foes; she was my worst enemy.
Brother	I have three siblings: two brothers and a sister.	I have two brothers and a brother.
Rival	My sister and I are always encouraging each other.	She was constantly trying to outdo me; she was my biggest rival.
Acquaintance	She was more than just an acquaintance; she was my sister.	He was just someone I met briefly; he was not my sister.
Adversary	The two teams were on opposite sides, just like siblings Big Sister and my sister.	They were working against each other; they were adversaries.
Opponent	When we faced each other in the competition, it was like my sister against me.	We were competing head-to-head; she was my opponent.
Antagonist	She seemed to always be against me, like a villain in a story, not a loving sister.	I couldn’t trust her; she was an antagonist in my life.
Foe	We used to be as close as two friends; now we’re as distant as my sister and my foe.	We were enemies; she was my foe.
Competitor	Our friendly rivalry was like that of two athletes; she was like a sibling to me.	She pushed me to do better; she was my toughest competitor.
Opposer	It felt like we were always butting heads, like an opposer against my sister.	We were on opposite sides; she was my opposer.
Offspring	Our parents had three children: two sons and a daughter.	Our parents had four children: two sons and two daughters.
Fellow	She was not just a co-worker; she was like a sibling to me.	He was not just an acquaintance; he was a fellow in the same field of work.
Cohort	The group of friends included the siblings, as well as their close sister Big Sister.	They were always together as a group, like Big Sister and her cohort.
Protagonist	As the hero of the story, she stood strong against the villain, who was my sister in disguise.	She was the main character, battling against the protagonist of the story.
Comrade	We had each other’s backs through thick and thin, just like brothers and sisters in arms.	They were like soldiers fighting together; they were comrades.
Consort	We were a married couple, just like husband and wife, but not brother and sister.	They were in a union as partners, but not as brother and consort.
Adherent	They were faithful followers of that ideology, devoted like siblings to their cause.	He was a strong believer in their principles; he was an adherent.
Divergent	Our paths were heading in opposite directions, like branches of a tree, not like siblings.	They were drifting apart, not in agreement; they were divergent.
Unrelated	We shared no common ancestors; we were not cousins, we were not sisters.	They had no family ties between them; they were completely unrelated.
Opposite	Her perspective was always the contrary, the reverse of my sister‘s viewpoint.	They were always in disagreement, taking the opposite stances.
Adverse	The circumstances were unfavorable, working against the close bond of sisters.	The situation was difficult, creating an adverse relationship.
Detractor	She always found ways to criticize, undermining the efforts of my sister.	He was always pointing out flaws; he was acting as a detractor.
Alien	She felt like an outsider in the family, unlike the bond shared by the siblings my sister and Big Sister.	He was from another world, distant and different, completely alien to us.
Irrelevant	The topic of conversation was unrelated, not connected to the bond of sisters at all.	He brought up something completely irrelevant to the discussion.
Opposed	The two sides were in direct conflict, fighting against each other like my sister and the opposed party.	They were against each other, taking opposed positions.
Diametric	The views held by the two individuals were completely opposite, opposite as Big Sister and my sister.	They had polar opposite positions; they were diametric to each other.
Divorced	The marriage had ended; they were no longer spouses, not even connected as brother and sister.	They had ended the relationship, completely divorced from each other.
Unallied	We were not joined by any common goals or interests, unlike the united front of siblings Big Sister and little sister.	They were completely separate, unconnected, and unallied.
Parted	The roads diverged, moving in different directions like the paths of my sister and the parted individual.	They had separated, gone separate ways; they were parted.
Disparate	Their backgrounds were completely different, not related in any way, unlike the shared upbringing of the siblings my sister and Big Sister.	They had nothing in common, completely disparate in their experiences.
Unknown	The stranger was unfamiliar, not known to my sister or me in any way.	She was unfamiliar, completely unknown to us.
Separated	The once-close friends had drifted away from each other, not in touch, like the close bond of Big Sister and my sister.	They had gone their separate ways, no longer together; they were separated.
Dissimilar	The two items were not alike, different in every way, quite unlike the sisters Big Sister and Little Sister.	They were not similar, completely dissimilar to each other.
Disconnected	There was no communication or relationship between the two parties, not tied together like siblings my sister and Big Sister.	They were not related, not linked; they were disconnected.
Unrelated	The stories were completely different, not connected in any way, unlike the shared history of siblings my sister and Big Sister.	They had nothing in common; they were completely unrelated.
Estranged	They once were close, but now distant, apart like the estranged siblings my sister and Big Sister.	They had become distant and detached; they were estranged.

More Example Sentences With Antonyms Of Sister

Antonym	Sentence with Sister	Sentence with Antonym
Brother	My sister and I get along very well.	My brother and I have our differences.
Sibling	Rachel has one sister and two brothers.	Rachel is an only child without any siblings.
Opponent	My sister always supports me in everything.	My opponent never misses a chance to criticize me.
Stranger	She treats me like a sister.	She treats me like a complete stranger.
Rival	Growing up, we had the typical sister rivalry.	We decided that we are better off as friends than rivals.
Enemy	Despite our differences, she will always be my sister.	She may be your enemy, but she is still my friend.
Unrelated	She is my half-sister from my father’s previous marriage.	He is just an unrelated person who is staying with us temporarily.
Inimical	My sister has always been kind and supportive.	Her actions towards me were rather inimical.
Antagonist	My sister is my greatest ally in life.	They seem to have been more like antagonists throughout their relationship.
Foe	Whenever I have a problem, my sister is the first person I call.	He may be a foe to some, but he is a good friend to me.
Acquaintance	I have known her since we were kids, she is more like a sister to me.	We have just met, so we are merely acquaintances.
Outsider	She feels like a part of the family as much as my sister does.	He always feels like an outsider in social gatherings.
Comrade	My sister and I face challenges together.	We need someone to be our comrade in this battle.
Competitor	My sister and I don’t compete, we support each other.	She sees everyone as her competitor, even her friends.
Nonrelative	I have known her since we were kids, she is like a sister to me.	His presence in the room was like that of a nonrelative.
Colleague	My sister often helps me with my work.	She is a great colleague to have in the office.
Fellow	She is not just my sister but also my best friend.	We treat each other as fellows rather than enemies.
Companion	My sister is always by my side through thick and thin.	He seeks a companion for this journey.
Pal	Growing up, she was not just my sister but also my closest friend.	He is looking for a new pal to hang out with.
Ally	In tough times, my sister is my greatest ally.	She needs a reliable ally in this challenging task.
Helper	When I needed help, my sister was there for me.	She looked around for a helper but found none.
Supporter	My sister always supports me in my decisions.	Without a supporter like her, he felt lost.
Defender	She is always there to protect me like a loving sister.	He wished he had a defender like her in court.
Cherisher	My sister cherishes our bond as much as I do.	He longed for a cherisher in his life.
Synonym	She is not only my sister but also my twin.	The words “twins” and “siblings” are sometimes used as synonyms.
Roommate	Rachel has been a wonderful sister and roommate.	He is now searching for a new roommate.
Associate	As we grew up, we became more than just sisters but close associates.	He wanted to partner with an experienced associate for the project.
Cheerleader	She has always been my biggest cheerleader, supporting me in everything I do.	He needed a cheerleader to boost his morale.
Well-wisher	She genuinely cares for me and is my biggest well-wisher.	He could not find a well-wisher in his time of need.
Collaborator	We are not just sisters but also great collaborators.	He was looking for a new collaborator for his music project.
Proponent	My sister is a strong proponent of equality and justice.	He found himself going against a strong proponent in the debate.
Teammate	She is not just my sister but also my favorite teammate.	He hoped to find a new teammate for the upcoming game.
Advocate	She has always been an advocate for my dreams and well-being.	He needed an advocate to argue his case to the authorities.
Cohort	Growing up, my sister was more than just a sibling, she was my cohort in mischief.	He was looking for a new cohort to join forces with.
Partisan	My sister is a strong partisan of the arts.	He found himself up against a strong partisan in the discussion.
Like-minded	She is not just my sister, but also a like-minded companion.	He wished for a like-minded partner who shared his interests.
Advocate	Despite our differences, my sister stands up as an advocate for me.	He sought an advocate to represent his interests in the case.

Outro
Antonyms of sister, opposite of sister and sister ka opposite word are the same thing. In conclusion, the opposite word of “sister” is “brother.” While a sister typically refers to a female sibling, a brother refers to a male sibling. This distinction between sister and brother is commonly used to differentiate between siblings based on their gender. Siblings play a significant role in many people’s lives, and the relationship between brothers and sisters can be a unique and special bond characterized by love, support, and shared experiences. Recognizing and understanding the difference between a sister and a brother can help in accurately describing familial relationships.