sanity

As a noun sanity

is the condition of being sane.

As a proper noun serenity is

in general use since the 1990s.

As nouns the difference between mentality and sanity

is that mentality is a mindset; a way of thinking while sanity is the condition of being sane.

As a noun sanity

is the condition of being sane.

As an adjective saner is

(sane).

As nouns the difference between sanity and conscience

is that sanity is the condition of being sane while conscience is the moral sense of right and wrong, chiefly as it affects one's own behaviour.

As nouns the difference between sanity and sagacity

is that sanity is the condition of being sane while sagacity is the quality of being sage, wise, or able to make good decisions.

As nouns the difference between sanity and healthiness

is that sanity is the condition of being sane while healthiness is (uncountable) the state or quality of being healthy.

As nouns the difference between sanity and wellbeing

is that sanity is the condition of being sane while wellbeing is .

As an adjective fortune

is with good luck; fortunate.

As a noun sanity is

the condition of being sane.

As nouns the difference between sanity and cleanliness

is that sanity is the condition of being sane while cleanliness is the property of being cleanly, or habitually clean; good hygiene.

As nouns the difference between sanity and cleanness

is that sanity is the condition of being sane while cleanness is moral purity; innocence.