adj. 25B6; adjective BLUNDERING, bungling, inept, clumsy, maladroit, awkward, muddled; oafish, clodhopping, lumbering; crude; informal botched, ham-fisted, cack-handed.
efficient.
BUMBLING
Meaning of BUMBLING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012