mentality vs mind-set

mentality and mind-set both are nouns.

Word	Noun	Adjective	Verb	Adverb
mentality	Yes	No	No	No
mind-set	Yes	No	No	No

As nouns, mentality and mind-set are synonyms defined as:

mentality and mind-set: a habitual or characteristic mental attitude that determines how you will interpret and respond to situations

Other synonyms of mentality include mindset, outlook.

mentality (noun)	mind-set (noun)
mental ability	a habitual or characteristic mental attitude that determines how you will interpret and respond to situations
a habitual or characteristic mental attitude that determines how you will interpret and respond to situations