backsliding - definition and synonyms

noun [uncountable] informal 

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/ˈbækˌslaɪdɪŋ/
  1. the lazy behaviour of someone who goes back to doing something bad after not doing it for some time

    I’ve quit smoking again, and there’ll be no backsliding this time.

derived word

backslider

noun [countable]
singularbackslider
pluralbacksliders