GRE spendthrift Definition A person who spends money recklessly or wastefully. Example "He was known as a spendthrift who never saved a dime." Sign in to save GRE Quiz → ← spell sphere → Study tips featuring "spendthrift" Write GRE Words Into Your Own Sentences Related words GRE swill GRE taper GRE testy GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct