I. adjective Date: 1591 heedless , careless , ~ly adverb ~ness noun II. adverb Date: 1872 despite everything , see: ir~
REGARDLESS
Meaning of REGARDLESS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012