Meaning of IRRESPONSIBLE in English IRRESPONSIBLE adj.Function: noun Date: 1892: a person who is irresponsible Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012 Dictionaries → English dictionaries → Merriam Webster Collegiate English Dictionary Словари → Английские словари → Merriam Webster - Энциклопедический словарь английского языка