in any event vs anyhow

in any event and anyhow both are adverbs.

Word	Noun	Adjective	Verb	Adverb
in any event	No	No	No	Yes
anyhow	No	No	No	Yes

As adverbs, in any event and anyhow are synonyms defined as:

in any event and anyhow: used to indicate that a statement explains or supports a previous statement

Other synonyms of in any event include anyway, anyways, at any rate, in any case.

in any event (adverb)	anyhow (adverb)
used to indicate that a statement explains or supports a previous statement	used to indicate that a statement explains or supports a previous statement
	in any way whatsoever