Synonym Discussion of Weak. lacking strength: such as; deficient in physical vigor : feeble, debilitated; not able to sustain or exert much weight, pressure, or strain… See the full definition

Synonyms for WEAK: weakened, feeble, frail, disabled, faint, enfeebled, debilitated, wimpy; Antonyms of WEAK: strong, powerful, mighty, stout, muscular, rugged, tough ...