ebbing

a gradual sinking and wasting away of mind or body seniors who stay active can keep at bay some of the inevitable ebbing of the memory that comes with advanced years Synonyms debilitation, decay, decaying, declension, degeneration, descent, deterioration, decline, enfeeblement, weakeningRelated Words atrophy; exhaustion; drooping, flagging, limping; regression, relapse, setbackNear Antonyms invigoration, strengthening; progress; rejuvenation, rejuvenescenceAntonyms comeback, improvement, rally, recovery, recuperation, rehabilitation, revitalization, snapback