relapser

/rɪˈlæpsər/
noun
  1. A person who returns to a previous, usually worse, condition or habit after a period of improvement.
    • The support group helps relapsers get back on track with their recovery.
    • The program offers special counseling for relapsers who need extra motivation.
    • As a known relapser, he struggled to stay sober for more than a few months.
Antonyms
What does "relapser" mean? | whatsthatwordmean | whatsthatwordmean