Antonyms for brother:

sis, sister.

Synonyms for brother:

black (adjective)


Sense 1

rasta, Dang, labor, sibling, revivalist, coreligionist, organize, teamster, member, taoism, mystic, penitent, the CBI, the AFL-CIO, megachurch, faith community, congregation, sect, sisterly, unionize, do without, Baha'i, pagan, priestess, trade union, mendicant, shop steward, conjoined twin, fraternal twin, sr., unionized, Trades Union Congress, denominational, the TUC, union, Siamese Twin, animism, Humph, labor union, COSATU, heck, equity, ascetic, druid, Rastaman, shaman, ACTU, identical twin, syndicalism, phooey, nonunion, multifaith, parsi, half sister, trades union, votary, parsee, closed shop, hermit, zoroastrianism, sibling rivalry, denomination, rastafarian, interfaith.

Sense 2

executive, darn, blasted, fundamentalist, martyr, messiah, yogi, brethren, Predicant, precious, visionary, br, chapel, unorganized, blessed, BRO, confidante, nuts.

Sense 3

honestly, kid, could, suppose.

Sense 4

indeed, not, rotten, cult, constant, might.

Sense 5


Sense 6

oh, lovely.

Sense 8


Sense 10


Sense 11


Sense 12




Other synonyms and related words:

member, confidante, chapel, denomination, heck, mystic, man, shoot, druid, could, related, ascetic, sidekick, darn, honestly, BRO, votary, sibling, blood brother, Dang, mendicant, sis, half-brother, priestess, martyr, indeed, unorganized, penitent, sisterly, organize, animism, Baha'i, COSATU, ACTU, order, suppose, unionize, executive, associate, revivalist, visionary, phooey, hermit, not, brethren.

Sense 1 (noun)


Sense 2 (noun)

executive, equity, labor, ACTU, chapel, the CBI, the AFL-CIO, closed shop, COSATU.

Sense 3 (noun)

confidante, brethren, congregation, coreligionist, animism, Baha'i, denomination, ascetic, cult.

Sense 5 (noun)

conjoined twin, half sister, BRO, br, big, fraternal twin.

Sense 6 (noun)


Sense 7 (noun)


accompaniment (noun)

appurtenance, garnish, addition, consort, second, secondary, adornment, attachment, lieutenant, appendix, extension, addendum, fixture, ornament, accessory, adjunct, accompaniment, companion, auxiliary, extra, appendage.

friend (noun)

cousin, classmate, teammate, comrade, ally, Familiar, mate, roommate, acquaintance, friend, company, fellow, colleague, confidant, pal, playmate, partner, co-worker, chum, buddy, schoolmate, intimate, amigo, crony.

kinship (noun)

kin, blood, fatherhood, fraternity, consanguinity, Family, aunt, niece, flesh, sisterhood, brotherhood, maternity, lineage, paternity, uncle, nephew, mother, relative, clan, relation, heredity, kinship, kinfolk, ancestor, motherhood.

male sibling (noun)

kin, relation, blood brother, relative.

man (noun)

uncle, nephew.

Usage examples for brother:

  • Why, is he not my brother And I his sister? - "The Saint's Tragedy", Charles Kingsley.
  • You went to live with your brother? - "The Awakening of Helena Richie", Margaret Deland.

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significant, world-shattering, earthshaking, world-shattering, earthshaking, important, significant, world-shattering, consequential, considerable.