Synonyms of cave-in

1 Syllable
faint, crash, smash, flop, wreck
2 Syllables
ruining, smashup, tailspin, tailspins, descent, undoing, crackup
3 Syllables
destruction, damage, failure, cataclysm, bankruptcy, exhaustion, ruination, prostration, disruption, debacle, collapse, prolapse
4 Syllables
subsidence, catastrophe
5 Syllables
disintegration
6 Syllables
disorganization