leastways vs at any rate

leastways and at any rate both are adverbs.

Word	Noun	Adjective	Verb	Adverb
leastways	No	No	No	Yes
at any rate	No	No	No	Yes

As adverbs, leastways and at any rate are synonyms defined as:

leastways and at any rate: if nothing else (`leastwise' is informal and `leastways' is colloquial)

Other synonyms of leastways include at least, leastwise.

leastways (adverb)	at any rate (adverb)
if nothing else (`leastwise' is informal and `leastways' is colloquial)	used to indicate that a statement explains or supports a previous statement
	if nothing else (`leastwise' is informal and `leastways' is colloquial)