relapsing

re-laps-ing

adjective

Characterised by a tendency to return to a previous, often worse, state.

"Relapsing fever is a serious bacterial infection."

verb

Returning to a previous, often worse, state after a period of improvement.

"The patient is relapsing after a period of stability."

Thesaurus

Synonyms: lapsing, relapse, backsliding, reversion, lapse, reverting