n. 25B6; verb
a few patients relapse : GET ILL/WORSE AGAIN, have/suffer a relapse, deteriorate, degenerate, take a turn for the worse.
she relapsed into silence : REVERT, lapse; regress, retrogress, slip back, slide back, degenerate.
improve.
25B6; noun
one patient suffered a relapse : DETERIORATION, turn for the worse.
a relapse into alcoholism : DECLINE, lapse, deterioration, degeneration, reversion, regression, retrogression, fall, descent, slide.