uneasiness vs uncomfortableness

uneasiness and uncomfortableness both are nouns.

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

As nouns, uneasiness and uncomfortableness are synonyms defined as:

uneasiness and uncomfortableness: embarrassment deriving from the feeling that others are critically aware of you

Other synonyms of uneasiness include self-consciousness.

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

Other hypernyms of uneasiness include discomfort.

uneasiness (noun)	uncomfortableness (noun)
inability to rest or relax or be still	embarrassment deriving from the feeling that others are critically aware of you
the trait of seeming ill at ease	the state of being tense and feeling pain
embarrassment deriving from the feeling that others are critically aware of you
feelings of anxiety that make you tense and irritable
physical discomfort (as mild sickness or depression)