apoplexy /ˈæp.əˌplɛk.si/ noun3 •(old-fashioned) Unconsciousness or incapacity resulting from a cerebral hemorrhage or stroke. •(informal) A state of intense anger; uncontrollable fury so intense as to have effects like a stroke.That message sent him into a fit of apoplexy. •(old-fashioned) Gross hemorrhage into a cavity or into the substance of an organ. formsapoplexies