Synonyms of unlikely in English:

unlikely


See definition of unlikely

adjective

1‘it is unlikely that the band will play here again this year’

SYNONYMS

improbable, not likely, doubtful, dubious, unexpected, beyond belief, implausible

ANTONYMS

likely, certain

2‘they laughed at themselves for believing such an unlikely story’

SYNONYMS

implausible, improbable, questionable, unconvincing, remote, far-fetched, strained, laboured, unrealistic, incredible, unbelievable, inconceivable, unimaginable, fantastic, fabulous, fanciful, ridiculous, absurd, preposterous

informal tall, cock and bull, hard to swallow, hard to take

ANTONYMS

likely, believable