riant vs happy

riant and happy both are adjectives.

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

riant (adjective)	happy (adjective)
showing or feeling mirth or pleasure or happiness	enjoying or showing or marked by joy or pleasure
	well expressed and to the point
	marked by good fortune
	eagerly disposed to act or to be of service