4
come down(verb, expression, phrasal verb, settle, slip)
4
come to naught(verb, expression, idiom, fail)
4
comedown(noun, end, ruin, fall, blow)
4
crack-up(noun, ruin, blow, crack, failure)
4
crock up(verb, expression, phrasal verb)
4
cropper(noun, decline, fall, blow, letdown)
4
damage(noun, upset, blow, strain, shock)
4
declension
4
decomposition(noun, disorder, confusion, mess, deterioration)
4
decrease(noun, verb, drop, decline, reduce)
4
die(verb, stop, break, decline, fail)
4
diminish(verb, drop, decline, settle, fail)
4
disappear(decline, fail, cease, decay, succumb)
4
disease(noun, disease, illness, sickness, affliction)
4
distort(verb, change, twist, alter, falsify)
4
drop down(verb, expression, drop, decline, settle)
4
erupt(verb, excited, blast, blaze, shatter)
4
exhaust(verb, break, drop, fail, strain)
4
fall apart(verb, expression, phrasal verb, break, drop)
4
fall to pieces(expression, idiom, break, fail, fragment)
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APASmart Define. (2016). collapse thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/collapse/thesaurus/synonyms
ChicagoSmart Define. 2016. "collapse thesaurus" https://smartdefine.org/collapse/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, collapse thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/collapse/thesaurus/synonyms>.
MLASmart Define. "collapse thesaurus" 29 February 2016. Web. 21 September 2026. <https://smartdefine.org/collapse/thesaurus/synonyms>