impatience vs restlessness

impatience and restlessness both are nouns.

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

As nouns, restlessness is a hypernym of impatience; that is, restlessness is a word with a broader meaning than impatience:

Other hypernyms of impatience include fidget, fidgetiness.

As nouns, impatience and restlessness are synonyms defined as:

impatience and restlessness: a lack of patience; irritation with anything that causes delay

impatience (noun)	restlessness (noun)
a dislike of anything that causes delay	inability to rest or relax or be still
a restless desire for change and excitement	the quality of being ceaselessly moving or active
a lack of patience; irritation with anything that causes delay	a feeling of agitation expressed in continual motion
	a lack of patience; irritation with anything that causes delay