Synonyms of collapsing

1 Syllable
droop, faint, yield, give, tire, go, break, fail, drop, flag, bend, wilt, fold
2 Syllables
pooped, weaken, tired, breaking, founder, crumbling, falling, decaying, languish, weary, succumb, topple, crumple, shatter, exhaust
3 Syllables
fracturing, deflate, subside, dog-tired
4 Syllables
narcoleptic
5 Syllables
disintegrate