ORIGIN early 20th cent.: probably a blend of irrespective and regardless
USAGE Irregardless, with its illogical negative prefix, is widely heard, perhaps arising under the influence of such perfectly correct forms as: irrespective. Irregardless is avoided by careful users of English. Use regardless to mean 'without regard or consideration for' or 'nevertheless': | I go walking every day regardless of season or weather.
Hmmmm..... “Irregardless is avoided by careful users of English”
Feel free to not take care in your use of English. Feel free not to take care in your choice of candidates.
Bless your heart, in the Southern sense of the phrase.
I don’t need all that Oxford dictionary crappola. I make up my own words and use them as I like. Word freakery is just elitist tom foolery!