backslide /ˈbækˌslaɪd/ verb backslides; backslid /-ˌslɪd/ ; /ˈbækˌslɪd/; backsliding backslides; backslid /-ˌslɪd/ ; /ˈbækˌslɪd/; backsliding Learner's definition of BACKSLIDE
[no object]
: to start doing something bad again after you have stopped it故态复萌;退回老样子 — backslider
/ˈbækˌslaɪdɚ/ noun, plural backsliders [count]