happy vs felicitous

happy and felicitous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
happy	No	Yes	No	No
felicitous	No	Yes	No	No

As adjectives, happy and felicitous are synonyms defined as:

happy (adjective)	felicitous (adjective)
enjoying or showing or marked by joy or pleasure	exhibiting an agreeably appropriate manner or style
well expressed and to the point	marked by good fortune
marked by good fortune
eagerly disposed to act or to be of service