15 entries under fail topic. ×

5
regress(verb, fall, return, weaken)
1
be overcome(verb, fall, weaken, degenerate)
1
be overtaken(verb, fall, weaken, degenerate)
1
fade(verb, fall, weaken, degenerate)
1
fall back(verb, expression, fall, degenerate)
1
lapse(verb, fall, degenerate, deteriorate)
1
recidivate(verb, fall, weaken, degenerate)
1
retrogress(verb, fall, degenerate, deteriorate)
1
sicken(verb, fall, weaken, degenerate)
1
sink(verb, fall, degenerate, deteriorate)
1
slide back(verb, expression, fall, weaken)
1
slip back(verb, expression, fall, weaken)
1
suffer(verb, fall, weaken, degenerate)
1
worsen(verb, fall, weaken, degenerate)
0
fall(verb, weaken, degenerate, deteriorate)
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APASmart Define. (2015). turn back thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/turn_back/thesaurus/synonyms
ChicagoSmart Define. 2015. "turn back thesaurus" https://smartdefine.org/turn_back/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, turn back thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/turn_back/thesaurus/synonyms>.
MLASmart Define. "turn back thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/turn_back/thesaurus/synonyms>