smitten vs in love

smitten and in love both are adjectives.

Word	Noun	Adjective	Verb	Adverb
smitten	No	Yes	No	No
in love	No	Yes	No	No

As adjectives, smitten and in love are synonyms defined as:

Other synonyms of smitten include enamored, infatuated, potty, soft on, taken with.

smitten (adjective)	in love (adjective)
(used in combination) affected by something overwhelming	marked by foolish or unreasoning fondness
marked by foolish or unreasoning fondness