nice vs dainty

nice is not a noun while dainty is a noun.

Word	Noun	Adjective	Verb	Adverb
nice	No	Yes	No	No
dainty	Yes	Yes	No	No

As adjectives, nice and dainty are synonyms defined as:

Other synonyms of nice include overnice, prissy, squeamish.

nice (noun)	dainty (noun)
	something considered choice to eat

nice (adjective)	dainty (adjective)
pleasant or pleasing or agreeable in nature or appearance	delicately beautiful
excessively fastidious and easily disgusted	excessively fastidious and easily disgusted
exhibiting courtesy and politeness	especially pleasing to the taste
socially or conventionally correct; refined or virtuous
done with delicacy and skill