naughty vs spicy

naughty and spicy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
naughty	No	Yes	No	No
spicy	No	Yes	No	No

As adjectives, naughty and spicy are synonyms defined as:

Other synonyms of naughty include blue, gamey, gamy, juicy, racy, risque.

naughty (adjective)	spicy (adjective)
badly behaved	suggestive of sexual impropriety
suggestive of sexual impropriety	producing a burning sensation on the taste nerves