SAT GRE credulous Definition Too ready to believe things; gullible. Example "He was too credulous, believing every rumor he heard." Sign in to save SAT Quiz → GRE Quiz → ← creditor creed → Study tips featuring "credulous" Map the Author's Attitude Before Reading Questions Force Contrast Between Two Similar Words Stop Skipping Words and Read the Tone Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal