Definitions for backslideˈbækˌslaɪd
Random House Webster's College Dictionary
back•slideˈbækˌslaɪd(v.)-slid, -slid; -slid•den, -slid•ing
(v.i.)to relapse into bad habits, sinful behavior, or undesirable activities.
(n.)an instance of backsliding.
Origin of backslide:
drop to a lower level, as in one's morals or standards
To regress; to slip backwards or revert to a previous, worse state.
To shirk responsibility; to renege on one's obligations or commitments.
to slide back; to fall away; esp. to abandon gradually the faith and practice of a religion that has been professed