Incredible
Pronunciation : In*cred"i*ble
Part of Speech : a.
Etymology : [L. incredibilis: cf. OF. incredible. See In- not, and Credible.]
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913