crumple

1 to create (as by crushing) an irregular mass of creases in <crumpled the piece of paper and angrily threw it in the wastebasket> Synonyms crinkle, rumple, scrunch, wrinkle Related Words corrugate, crease, crimp, fold, pleat, pucker, ruck; crisp, ripple, ruffle; contract, furrow, knit; mess (up), muss (up) Near Antonyms even, iron, press, straighten; unfold; neaten, tidy Antonyms flatten, iron out, smooth, smoothen, uncrumple

2 to fall down or in as a result of physical pressure <the box crumpled when I accidentally dropped a brick on it> Synonyms buckle, cave (in), collapse, founder, give, go, go out, implode, tumble, yieldRelated Words deflate, flatten, melt, melt down; break, break down, conk (out), crash, die, fail, give out, stall; burst, shatter, smash, splinter, split; crack, crumble, pop, snapNear Antonyms inflate, rise, swell