snappy vs merry

snappy and merry both are adjectives.

Word	Noun	Adjective	Verb	Adverb
snappy	No	Yes	No	No
merry	No	Yes	No	No

As adjectives, snappy and merry are synonyms defined as:

Other synonyms of snappy include alert, brisk, lively, rattling, spanking, zippy.

snappy (adjective)	merry (adjective)
pleasantly cold and invigorating	quick and energetic
quick and energetic	offering fun and gaiety
marked by up-to-dateness in dress and manners	full of or showing high-spirited merriment
apt to speak irritably
smart and fashionable