improbable : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: improbable	by the DICT Development Group
2 results for improbable
From WordNet (r) 3.0 (2006) [wn]:
improbable adj not likely to be true or to occur or to have occurred; "legislation on the question is highly unlikely"; "an improbable event" Synonym(s): improbable, unlikely Antonym(s): likely, probable having a probability too low to inspire belief Synonym(s): improbable, unbelievable, unconvincing, unlikely too improbable to admit of belief; "a tall story" Synonym(s): improbable, marvelous, marvellous, tall(a)
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Improbable \Improb"able\, a. [L. improbabilis; pref. im- not + probabilis probable: cf. F. improbable. See {Probable}.] 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. He . . . sent to Elutherius, then bishop of Rome, an improbable letter, as some of the contents discover. --Milton. -- {Improb"ableness}, n. -- {Improb"a*bly}, adv.