sex activity vs restlessness

sex activity and restlessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex activity	Yes	No	No	No
restlessness	Yes	No	No	No

sex activity (noun)	restlessness (noun)
activities associated with sexual intercourse	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