Yes. It may not be a word that you like, or a word that you would use in a term paper, but irregardless certainly is a word. It has been in use for almost 200 years, and is employed by a large number of people across a wide geographic range and with a consistent meaning. That is why we, and well-nigh every other dictionary of modern English, define this word. Remember that a definition is not an endorsement of a word’s use.
Does irregardless mean the same thing as regardless?
Yes. We define irregardless as "regardless." Many people find irregardless to be a nonsensical word, as the ir- prefix usually functions to indicate negation; however, in this case it appears to function as an intensifier. Similar ir- words, while rare, do exist in English, including irremediless ("remediless"), irresistless ("resistless"), and irrelentlessly ("relentlessly").
Is irregardless slang?
We label irregardless as “nonstandard” rather than “slang.” When a word is nonstandard it means it is “not conforming in pronunciation, grammatical construction, idiom, or word choice to the usage generally characteristic of educated native speakers of a language.” Irregardless is a long way from winning general acceptance as a standard English word. For that reason, it is best to use regardless instead.
Adverb
the weather looked bad, but they were resolved to go on with their picnic regardless
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Adverb
The family factor Though the researchers tried to weed out confounding factors in the study, some affected the outcomes regardless.—Greta Cross, USA Today, 31 Oct. 2025 With major plotlines hinging on a fashion house offering to send Tallulah a free bag or a potential brand deal with Tresemmé, the point comes across regardless.—Alison Herman, Variety, 30 Oct. 2025 But regardless, the storm is expected to be devastating for Jamaica.—Alex Harris, Miami Herald, 27 Oct. 2025 In that doomsday scenario, California would be subsidizing productions that would have opted to shoot in the state regardless.—Winston Cho, HollywoodReporter, 23 Oct. 2025 See All Example Sentences for regardless
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