Definition of irregardless in English:

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Pronunciation: /ˌɪrɪˈɡɑːdləs/

adjective& adverb

Regardless: the photographer always says, irregardless of how his subjects are feeling, ‘Smile!’
More example sentences
  • Use words correctly, irregardless of how others use them.
  • Is the user expected to open the files irregardless of warnings?
  • And if you do that, then irregardless of who wins, you've done your civic duty.


Irregardless means the same as regardless, but the negative prefix ir- merely duplicates the suffix -less, and is unnecessary. The word dates back to the 19th century, but is regarded as incorrect in standard English.


Mid 19th century: probably a blend of irrespective and regardless.

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