nervous vs unquiet

nervous and unquiet both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nervous	No	Yes	No	No
unquiet	No	Yes	No	No

As adjectives, nervous and unquiet are synonyms defined as:

Other synonyms of nervous include anxious, queasy, uneasy.

nervous (adjective)	unquiet (adjective)
of or relating to the nervous system	characterized by unrest or disorder
unpredictably excitable (especially of horses)	causing or fraught with or showing anxiety
excited in anticipation
easily agitated
causing or fraught with or showing anxiety