adjective Etymology: irregular from lackaday + -ical Date: 1768 lacking life, spirit, or zest ; languid , see: languid ~ly adverb
LACKADAISICAL
Meaning of LACKADAISICAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012