Added 10 October 2026 relapsing noun Categories: ActionsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about relapsing at Wordnik → Where our words come from → A failure to maintain a higher state. Related Words: reversionbackslidingrecidivismlapselapsingrevertingremittingrecrudencyrepedationrecubationagain-comingrecoilment Back to today's word