haphazard vs sex activity

haphazard is not a noun while sex activity is a noun.

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

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

haphazard (adjective)	sex activity (adjective)
marked by great carelessness
dependent upon or characterized by chance

haphazard (adverb)	sex activity (adverb)
without care; in a slapdash manner