Irregard
Giving zero fucks entirely
"Listen here, I watched your son fuck my daughter from 4 feet away in my driveway and made eye contact. he belittled me in front of my daughter while IN her, and showed total complete fucking IRREGARD during the entire ordeal until he drove off in that wagon of his."
irregardful
adverb. Full of a lack of regard. A more intense version of regardless. The truest antonym of the nonstandard word irregardless.
"Irregardful of common practice, 'irregardful' is just as useful a word as 'irregardless'."
Irregardably
Not to be fit or deserving of notice.
Irregardably, Fernando's wonton attitude in sharing important information, has destroyed the relationship.