anyhow vs in any case

anyhow and in any case both are adverbs.

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

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

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

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

anyhow (adverb)	in any case (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	making an additional point; anyway