THESAURUS
recidivate
backslide, cock, fall, fall again into, fall astern, fall back, fall behind, fall from grace, get behind, go backwards, go behind, have a relapse, jerk back, lapse, lapse back, lose ground, pull back, recede, recur to, regress, relapse, retrocede, retroflex, retrograde, retrogress, retrovert, return, return to, reverse, revert, revert to, sink back, slide back, slip back, yield again to
ROGET THESAURUS
recidivate
Relapse
VB
relapse, lapse, fall back, slide back, sink back, return, retrograde,
recidivate, fall off again.