• (v. t.) To make bitter; hence, to make distressing or more distressing; to make sad, morose, sour, or malignant.
Im·bit'ter transitive verb [ imperfect & past participle Imbittered ; present participle & verbal noun Imbittering .] [ Prefix im- in + bitter . Confer Embitter .] [ Written also embitter .] To make bitter; ...