risible vs mirthful

risible and mirthful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
risible	No	Yes	No	No
mirthful	No	Yes	No	No

As adjectives, risible and mirthful are synonyms defined as:

Other synonyms of risible include amusing, comic, comical, funny, laughable.

risible (adjective)	mirthful (adjective)
arousing or provoking laughter	arousing or provoking laughter
	full of or showing high-spirited merriment