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" Let the Argument Reveal Unfamiliar Word Meanings Group Words Together by Emotional Tone Map the Author's Attitude Before Reading Questions 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