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