Also, it's "regardless", not "irregardless". If something was "irregardless" it would actually be the opposite of regardless, which would make it regard-ful. /endrant
That word has always stuck in my craw.
I enjoy engaging in self-righteous tirades concerning the word 'relentless', myself. To be without 'relent' is nonsensical, as relent is a verb, rather than a noun or an adjective; the situation with 'ruthless' is different, as there was a time in the distant past when 'ruth' did function as an adjective. Thus, while the case for the latter is viable, that of the former is not.
Because I am affably anol about the whole thing, I always mentally change 'relentless' to 'unrelenting' when reading.
...and while we're about this business-I do not like the use of the word 'lighted' as a verb! The English speaking world should agree to use the word 'lit' instead, as that would, clearly, not sound awkward and dumb. It is difficult to enjoy spending time in my ivory tower if I must constantly remain vigilant concerning such matters.
Iullus Cornelius Smegmus Magnus Pantocrator