a. [ L. incredibilis: cf. OF. incredible. See In- not, and Credible. ] Not credible; surpassing belief; too extraordinary and improbable to admit of belief; unlikely; marvelous; fabulous. [ 1913 Webster ]
Why should it be thought a thing incredible with you, that God should raise the dead? Acts xxvi. 8. [ 1913 Webster ]
n. Incredibility. [ 1913 Webster ]