late 14c., "not likely to occur," from un- (1) "not" + likely (adj.). Similar formation in Old Norse ulikligr, Middle Danish uligelig. Meaning "not likely to be true" is recorded from 1590s. Related: Unlikeliness; unlikelihood.
unlikely (adv.)
mid-15c., "improbably," from un- (1) "not" + likely (adv.) (see likely (adj.)).
legislation on the question is highly unlikely
an unlikely candidate for reelection
an unlikely story
a butcher is unlikely to preach vegetarianism
unleavened
unless
unlettered
unlicensed
unlike
unlikely
unlimber
unlimited
unlink
unlisted
unlivable
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