IRREGARDLESS Meaning of IRREGARDLESS in English ir ‧ re ‧ gard ‧ less /ˌɪrɪˈɡɑːdləs $ -ɑːr-/ BrE AmE adverb nonstandard ↑ regardless Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012