unequal vs understaffed

unequal and understaffed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unequal	No	Yes	No	No
understaffed	No	Yes	No	No

unequal (adjective)	understaffed (adjective)
poorly balanced or matched in quantity or value or measure	inadequate in number of workers or assistants etc.
lacking the requisite qualities or resources to meet a task