Synonyms to blunder upon

alight upon, bump into, chance upon, come across, come among, come down on, come on, come up against, come upon, confront, descend upon, discover serendipitously, drop on, encounter, fall across, fall among, fall foul of, fall in with, fall on, fall upon, happen upon, hit upon, light upon, meet, meet head-on, meet up with, meet with, pitch upon, run across, run into, run smack into, run up against, run upon, settle on, strike upon, stumble on, stumble upon, tumble on, fumble, bad job, ball up, be all thumbs, beat about, bevue, blow, blunder, blunder away, blunder into, blunder on, bobble, boggle, bollix, bollix up, bonehead play, boner, boo-boo, botch, bumble, bungle, butcher, clumsy performance, commit a gaffe, confound, confuse, drop, error, etourderie, faux pas, feel, feel around, feel for, flounder, flub, fluff, foozle, foul up, garble, gaucherie, goof up, grabble, grope, grope for, grump, hash, jumble, louse up, lumber, mar, mess, miscue, mishandle, mistake, mix up, mop, mouth, mow, muck up, muddle, muff, mug, murder, murmur, mutter, off day, pet, pi, play havoc with, play hob with, p