morale vs disposition

morale and disposition both are nouns.

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

As nouns, disposition is a hypernym of morale; that is, disposition is a word with a broader meaning than morale:

morale: the spirit of a group that makes the members want the group to succeed
disposition: your usual mood

Other hypernyms of morale include temperament.

morale (noun)	disposition (noun)
the spirit of a group that makes the members want the group to succeed	the act or means of getting rid of something
a state of individual psychological well-being based upon a sense of confidence and usefulness and purpose	your usual mood
	a natural or acquired habit or characteristic tendency in a person or thing
	an attitude of mind especially one that favors one alternative over others