Backslide and Fall back

Backslide verb - Drop to a lower level, as in one's morals or standards.

Fall back and backslide are semantically related. in relapse topic. In some cases you can use "Fall back" instead a verb "Backslide".

Fall back verb - To move back or away (as from something difficult, dangerous, or disagreeable).

Backslide and fall back are semantically related. You can use "Backslide" instead a verb "Fall back".