1. [ adjective ] not likely to be true or to occur or to have occurred
Synonyms: improbable

"legislation on the question is highly unlikely" "an improbable event"

Related terms: probable supposed
2. [ adjective ] has little chance of being the case or coming about

"an unlikely story "an unlikely candidate for reelection" "a butcher is unlikely to preach vegetarianism"

Related terms: likely last outside farfetched likelihood
3. [ adjective ] having a probability to low to inspire belief
Synonyms: unbelievable unconvincing improbable
Related terms: implausible
Similar spelling:   unlike