askew vs skew-whiff

askew and skew-whiff both are adjectives.

Word	Noun	Adjective	Verb	Adverb
askew	No	Yes	No	Yes
skew-whiff	No	Yes	No	Yes

As adjectives, askew and skew-whiff are synonyms defined as:

Other synonyms of askew include awry, cockeyed, lopsided, wonky.

As adverbs, askew and skew-whiff are synonyms defined as:

Other synonyms of askew include awry.

askew (adjective)	skew-whiff (adjective)
turned or twisted toward one side	turned or twisted toward one side

askew (adverb)	skew-whiff (adverb)
turned or twisted to one side	turned or twisted to one side