GRE gutless Definition Cowardly; lacking courage or determination. Example "It was gutless of him to sneak out without saying goodbye." Sign in to save GRE Quiz → ← gusto gutter → Study tips featuring "gutless" 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