| Improbable (a.) Not probable; unlikely to be true; not to be expected under the circumstances or in the usual course of events; as, an improbable story or event. Thesaurus Entries absurd, crazy, distant, doubtable, doubtful, dubious, dubitable, extraordinary, fanciful, farfetched, fishy, flimsy, forced, hard to believe, hardly possible, implausible, impossible, inconceivable, incredible, insane, ludicrous, mad, more than doubtful, more than expected, out-of-the-way, past expectation, peculiar, questionable, quite another thing, remote, ridiculous, something else again, strained, strange, sudden, thin, unannounced, unanticipated, unbelievable, unconvincing, undivined, unexpected, unforeseeable, unforeseen, unguessed, unheralded, unhoped for, unlikely, unpredictable, unpredicted, unprepared for, unpromising, unrealistic, unsubstantial, unthinkable, weak, weird, wild, without warning |