permissivism vs mental attitude

permissivism and mental attitude both are nouns.

Word	Noun	Adjective	Verb	Adverb
permissivism	Yes	No	No	No
mental attitude	Yes	No	No	No

As nouns, mental attitude is a hypernym of permissivism; that is, mental attitude is a word with a broader meaning than permissivism:

permissivism: lenience toward or indulgence of a wide variety of social behavior.
mental attitude: a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways

Other hypernyms of permissivism include attitude.

permissivism (noun)	mental attitude (noun)
lenience toward or indulgence of a wide variety of social behavior.	a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways