nifty vs peachy

nifty and peachy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nifty	No	Yes	No	No
peachy	No	Yes	No	No

As adjectives, nifty and peachy are synonyms defined as:

Other synonyms of nifty include bang-up, bully, corking, cracking, dandy, great, groovy, keen, neat, not bad, old, slap-up, smashing, swell.

nifty (adjective)	peachy (adjective)
excellent	of something resembling a peach in color
	excellent