disposition vs temperament

disposition and temperament both are nouns.

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

As nouns, disposition and temperament are synonyms defined as:

disposition (noun)	temperament (noun)
the act or means of getting rid of something	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	your usual mood
a natural or acquired habit or characteristic tendency in a person or thing	excessive emotionalism or irritability and excitability (especially when displayed openly)
an attitude of mind especially one that favors one alternative over others