Synonyms of 'anyway'
anyhowDictionary, regardless, in any case
She won't let him stay with her, and anyway he wouldn't.
usage noteThe single-word form anyway should not be used as an alternative to any way, because the meanings are very distinct. Anyway is an adverb meaning `nonetheless' or, in a different sense, `besides'. Any way, however, means `by any means' or `in any manner'. The distinction can be seen in the following examples: it wasn't my job, but I helped anyway means `in spite of this fact', while we will help in any way we can means `any manner at all'.
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If you say that someone did something regardless, you mean that they did it even though there were problems or factors that could have stopped them, or perhaps should have stopped them.
Despite her recent surgery she has been carrying on regardless.
Thesaurus for anyway from the Collins English Thesaurus
You use anyway or anyhow to indicate that a statement explains or supports a previous point.