fecklessPronunciation: /ˈfɛklɪs/Translate feckless | into Italian Definition of feckless adjective lacking initiative or strength of character; irresponsible:her feckless younger brotherDerivatives fecklessly adverb fecklessness noun Origin: late 16th century: from Scots and northern English dialect feck (from effeck, variant of effect) + -lessfeckless in other Oxford dictionaries Definition of feckless in the US English dictionary