uneasiness vs nervousness

uneasiness and nervousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
uneasiness	Yes	No	No	No
nervousness	Yes	No	No	No

As nouns, nervousness is a hypernym of uneasiness; that is, nervousness is a word with a broader meaning than uneasiness:

uneasiness (noun)	nervousness (noun)
inability to rest or relax or be still	a sensitive or highly strung temperament
the trait of seeming ill at ease	the anxious feeling you have when you have the jitters
embarrassment deriving from the feeling that others are critically aware of you	an uneasy psychological state
feelings of anxiety that make you tense and irritable
physical discomfort (as mild sickness or depression)