Main entry: lapse, lapsing, relapse, relapsing, reversion, reverting, backsliding
Definition: a failure to maintain a higher state
Main entry: recidivate, regress, relapse, retrogress, fall back, lapse
Definition: go back to bad behavior
Usage: Those who recidivate are often minor criminals
Main entry: relapse, get worse
Definition: deteriorate in health
Usage: he relapsed