adj. 25B6; adjective INEXPERT, incompetent, inept, unskilled, amateurish, unprofessional, inexperienced, untrained, unpractised; informal ham-fisted, ham-handed, cack-handed.
UNSKILFUL
Meaning of UNSKILFUL in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012