Not likely; improbable; not to be reasonably expected; as, an unlikely event; the thing you mention is very unlikely. Not holding out a prospect of success; likely to fail; unpromising; as, unlikely means
If you say that something is unlikely to happen or unlikely to be true, you believe that it will not happen or that it is not true, although you are not completely sure. A military coup seems unlikely As with many technological revolutions, you are unlikely to be aware of it It's now unlikely that future parliaments will bring back the death penalty In the unlikely event of anybody phoning, could you just scribble a message down? likely
Not holding out a prospect of success; likely to fail; unpromising; as, unlikely means
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"
Not likely; improbable; not to be reasonably expected; as, an unlikely event; the thing you mention is very unlikely
not likely to be true or to occur or to have occurred; "legislation on the question is highly unlikely"; "an improbable event"