equanimity vs temperament

equanimity and temperament both are nouns.

Word	Noun	Adjective	Verb	Adverb
equanimity	Yes	No	No	No
temperament	Yes	No	No	No

As nouns, temperament is a hypernym of equanimity; that is, temperament is a word with a broader meaning than equanimity:

Other hypernyms of equanimity include disposition.

equanimity (noun)	temperament (noun)
steadiness of mind under stress	an adjustment of the intervals (as in tuning a keyboard instrument) so that the scale can be used to play in different keys
	your usual mood
	excessive emotionalism or irritability and excitability (especially when displayed openly)