puzzlement vs bemusement

puzzlement and bemusement both are nouns.

Word	Noun	Adjective	Verb	Adverb
puzzlement	Yes	No	No	No
bemusement	Yes	No	No	No

As nouns, puzzlement and bemusement are synonyms defined as:

puzzlement and bemusement: confusion resulting from failure to understand

Other synonyms of puzzlement include bafflement, befuddlement, bewilderment, mystification, obfuscation.

puzzlement (noun)	bemusement (noun)
confusion resulting from failure to understand	confusion resulting from failure to understand