adj. 25B6; adjective USELESS, worthless, incompetent, inept, good-for-nothing, ne'er-do-well; lazy, idle, slothful, indolent, shiftless; informal no-good, no-account.
FECKLESS
Meaning of FECKLESS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012