ETYM Latin incredibilis: cf. Old Fren. incredible. Related to In- not, and Credible.
Beyond belief or understanding; SYN. unbelievable.
astounding · dumbfounding · dumfounding · fabulous · implausible · improbable · incredulous · marvellous · marvelous · tall · unbelievable · unconvincing · undreamed · undreamed of · undreamt · undreamt of · unimagined · unthinkable