Further Boldening

My own personal pet peeve word that people use? "irregardless."

"Regardless" means "without regard." The "ir-" prefix is a variant of "un-," a prefix denoting negation. Therefore "irregardless" parses to "not regardless" or, down to its least common denominator, "with regard", a definition that is likely opposite to the intended meaning of the speaker.

I hear this word and my hackles rise. Perhaps it's just me.