screw up

1 to make a mistake we all screw up from time to time, so don't sweat it Synonyms blunder, boob [British], flub, fluff, foul up, fumble, goof (up), louse up, mess (up), err, slip up, stumble, tripRelated Words nod; bobble, botch, bungle, butcher, foozle, mangle, mishandle, muff, murder; miscalculate, misconceive, miscount, miscue, misdeem, misgauge, misjudge, mistake; misconstrue, misinterpret, misunderstand

2 to make or do (something) in a clumsy or unskillful way you've totally screwed up the spreadsheet Synonyms blow, bobble, boggle, bollix (up), boot, bugger (up), bumble, bungle, butcher, dub, flub, fluff, foozle, foul up, fumble, goof (up), louse up, mangle, mess (up), muck up, muff, murder, botchRelated Words blunder, gum (up), muddle, piffle; blemish, blight, damage, flaw, harm, hurt, impair, injure, mar, mutilate, ruin, spoil, vitiate; destroy, wreck; mishandle, mismanageNear Antonyms ameliorate, better, enhance, help, improve, meliorate, rectify, refine, reform, remedy; doctor, fix, patch, recondition, renovate, repair, revamp