Is Irrelevantly A Word?

Is Irrelevantly A Word? not relevant; not applicable or pertinent: His lectures often stray to interesting but irrelevant subjects. When did irrelevant become a word? But irregardless was first included in Merriam-Webster’s Unabridged edition in 1934, a spokesperson tells NPR. Other dictionaries, including Webster’s New World College Dictionary, The American Heritage Dictionary of the English