fidgetiness vs restlessness

fidgetiness and restlessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fidgetiness	Yes	No	No	No
restlessness	Yes	No	No	No

As nouns, fidgetiness and restlessness are synonyms defined as:

fidgetiness and restlessness: a feeling of agitation expressed in continual motion

Other synonyms of fidgetiness include fidget.

fidgetiness (noun)	restlessness (noun)
a feeling of agitation expressed in continual motion	inability to rest or relax or be still
	the quality of being ceaselessly moving or active
	a feeling of agitation expressed in continual motion
	a lack of patience; irritation with anything that causes delay