[Happy2BMe]

Main Entry: ir·re·gard·less
Pronunciation: "ir-i-'gärd-l&s
Function: adverb
Etymology: probably blend of irrespective and regardless
nonstandard : REGARDLESS
usage Irregardless originated in dialectal American speech in the early 20th century. Its fairly widespread use in speech called it to the attention of usage commentators as early as 1927. The most frequently repeated remark about it is that "there is no such word." There is such a word, however. It is still used primarily in speech, although it can be found from time to time in edited prose.

[Sterco]

Coming soon to a neighborhood near you. Illegal residents living three families to a home. Financed by your local bank. While the laundry is hung on the bushes to dry the kids will grab the cans of blue spray paint and slogans of Mexican rhetoric will decorate the sidewalks and fences. If you own property there sell it fast.

[A.A. Cunningham]

Usage Note: The label Non-Standard does only approximate justice to the status of irregardless. More precisely, it is a form that many people mistakenly believe to be a correct usage in formal style but that in fact has no legitimate antecedents in either standard or nonstandard varieties. (The word was likely coined from a blend of irrespective and regardless.)

Excerpted from The American Heritage® Dictionary of the English Language, Third Edition © 1996 by Houghton Mifflin Company. Electronic version licensed from INSO Corporation; further reproduction and distribution in accordance with the Copyright Law of the United States. All rights reserved.

[Old Seadog]

Irregardless is a redundancy and is not considered proper speech.

[HungarianGypsy]

That's great! MMy husband's friend always used that word and everyone told him there was no such word. I'm sending this to my husband.

[HungarianGypsy]

BTW, can you send me a source just in case.

[Dr. Luv]

One should never use a non-word like "irregardless" since regardless (the word you should have used) precisely fits the meaning of the sentence...