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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. -- Im*prob"a*ble*ness, n. -- Im*prob"a*bly, adv.

; reciprocal; interchangeable. So long as we are in the regions of nature, miraculous and improbable, miraculous and incredible, may be allowed to remain convertible terms. Trench.

Extravagant, like some stories about catching fish; improbable; also, rank or foul. [Colloq.]

The quality or state of being improbable; unlikelihood; also, that which is improbable; an improbable event or result.

Not credible; surpassing belief; too extraordinary and improbable to admit of belief; unlikely; marvelous; fabulous. Why should it be thought a thing incredible with you, that God should raise the dead Acts xxvi. 8.

amilton. The power by which we are enabled to perceive what is true or false, probable or improbable, is called by logicians the faculty of judgment. Stewart.

t; -- often with up.plump up the pillows To plump up the hollowness of their history with improbable miracles. Fuller.

In a possible manner; by possible means; especially, by extreme, remote, or improbable intervention, change, or exercise of power; by a chance; perhaps; as, possibly he may recover. Can we . . . possibly his love desert Milton. When possibly I can, I will return. Shak.

Not likely; improbable; unlikely. [Obsoles.] Unlike quantities (Math.), quantities expressed by letters which are different or of different powers, as a, b, c, a2, a3, xn, and the like. -- Unlike signs (Math.), the signs plus (+) and minus (-).

Not likely; improbable; not to be reasonably expected; as, an unlikely event; the thing you mention is very unlikely.