I really find it very annoying when words are used incorrectly. “Irregardless” is not what most people think it is. For starters, it’s a double negative. There are some that argue that it’s not a word at all. Problem is, if you look it up, you can find it in online dictionaries. Of course, that means little these days—look what you can find in Wikipedia!
Whether it’s a word or not is for others to debate and decide. My point of concern is that it shouldn’t be used the way many people use it.
Let’s break it down: “Ir” means “not” as in “Irresponsible” or “Irresponsive“. “Regardless” means “without regard“.
So “Irregardless” means “not without regard” which is the same as using the phrase “with regard to” or the word “regarding“.
Still, people try to use it to mean something akin to “however“, “nevertheless“, or even “regardless“. The funny thing is that even the most educated people use the word–regardless of the fact that it doesn’t mean what they think it does.