Main entry: unlikely
Definition: has little chance of being the case or coming about
Usage: an unlikely story; an unlikely candidate for reelection; a butcher is unlikely to preach vegetarianism
Main entry: improbable, unlikely
Definition: not likely to be true or to occur or to have occurred
Usage: legislation on the question is highly unlikely; an improbable event
Main entry: improbable, unbelievable, unconvincing, unlikely
Definition: having a probability too low to inspire belief