The "regardless of whether or not" is awkward, and it feels like bad grammar, but I can't think of a better way to say it. What would the proper grammar be in this case?

"Regardless to" is the one that sounds awkward because it's utterly ungrammatical. However, "regardless of", aside from being grammatically correct, sounds quite appropriate to my ear.

It seems "regardless of" covers all the meaning of "irrespective of", but not vice versa.For instance, I think in the following sentence, "regardless of" can not be replaced by "irrespective …

Aug 18, 2010 · Some people use "irregardless" for “regardless” but many people think it is incorrect. It is probably a combination of "irrespective" and "regardless" which is sometimes …

Feb 20, 2013 · Regardless is a perfectly standard word in current use. I suspect you are confusing it with irregardless, which is often used for regardless or irrespective, and may originate either …

May 17, 2016 · “Regardless” is just another word for “despite” or “not being affected by something”. Examples from (Cambridge dictionary): 1) It was pouring with rain, but we pressed …

Dec 5, 2010 · While wanting to properly close a question and thank its participants on one of Stack Exchange's other sites-the question had resolved itself–I started wondering if "Thanks …

Feb 28, 2011 · The correct word to use in this situation is nonetheless, although it sounds somewhat awkward to my ear: I want to talk to you nonetheless. A more idiomatic alternative …

May 11, 2023 · Or the unintended reversal in the logical sense of regardless caused by appending the negating prefix ir- to the beginning of the word may have made irregardless objectionable …

Oct 29, 2013 · The beginning sounds a bit redundant overall, with the words "regardless" and "whether" having a similar meaning or concept. Perhaps it would be better to say "Depending …