GRE testy Definition Easily irritated or annoyed; irritable. Example "He became testy after working for 12 hours without a break." Sign in to save GRE Quiz → ← testimony tether → Study tips featuring "testy" Write GRE Words Into Your Own Sentences Related words GRE swill GRE taper GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct GRE aberrant