lacking physical movement skills, especially with the hands; "a bumbling mechanic"; "a bungling performance"; "ham-handed governmental interference"; "could scarcely empty a scuttle of ashes, so handless was the poor creature"- Mary H. Vorse
lacking grace in movement or posture; "a gawky lad with long ungainly legs"; "clumsy fingers"; "what an ungainly creature a giraffe is"; "heaved his unwieldy figure out of his chair"
difficult to work or manipulate; "unwieldy rules and regulations"
difficult to use or handle or manage because of size or weight or shape; "we set about towing the unwieldy structure into the shelter"; "almost dropped the unwieldy parcel"
a wrong action attributable to bad judgment or ignorance or inattention; "he made a bad mistake"; "she was quick to point out my errors"; "I could understand his English in spite of his grammatical faults"
an understanding of something that is not correct; "he wasn't going to admit his mistake"; "make no mistake about his intentions"; "there must be some misunderstanding--I don't have a sister"
identify incorrectly; "Don't mistake her for her twin sister"