SAT GRE plenitude Definition An abundance or large quantity of something. Example "The garden grew in plenitude after the summer rains." Sign in to save SAT Quiz → GRE Quiz → ← pledge plethora → Study tips featuring "plenitude" 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