spiffy vs dapper

spiffy and dapper both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spiffy	No	Yes	No	No
dapper	No	Yes	No	No

As adjectives, spiffy and dapper are synonyms defined as:

Other synonyms of spiffy include dashing, jaunty, natty, raffish, rakish, snappy, spruce.

spiffy (adjective)	dapper (adjective)
marked by up-to-dateness in dress and manners	marked by up-to-dateness in dress and manners