Bumbling

Noun

 * 1) An act of bumbling, a mistake or error especially through clumsiness.

Verb
bumbling

Thesaurus
all thumbs, awkward, blunderheaded, blundering, boorish, bungling, butterfingered, careless, clownish, clumsy, clumsy-fisted, cumbersome, fingers all thumbs, fumbling, gauche, gawkish, gawky, graceless, halting, ham-fisted, ham-handed, heavy-handed, hulking, hulky, inelegant, inept, left-hand, left-handed, loutish, lubberly, lumbering, lumpish, maladroit, oafish, ponderous, sloppy, stiff, uncouth, ungainly, ungraceful, unhandy, unhappy, unwieldy, wooden