GRE marginal Definition Situated on the edge; minimal or barely sufficient. Example "The improvement in his health was marginal." Sign in to save GRE Quiz → ← margin marine → Study tips featuring "marginal" 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