adj. 25B6; adverb he decided to go, regardless : ANYWAY, anyhow, in any case, nevertheless, nonetheless, despite everything, in spite of everything, even so, all the same, in any event, come what may; informal irregardless.
25A0; regardless of IRRESPECTIVE OF, without regard to, without reference to, disregarding, without consideration of, discounting, ignoring, notwithstanding, no matter; informal irregardless of.