shallow vs wakeful

shallow is a noun but wakeful is not a noun.

Word	Noun	Adjective	Verb	Adverb
shallow	Yes	Yes	Yes	No
wakeful	No	Yes	No	No

shallow (noun)	wakeful (noun)
a stretch of shallow water

shallow (adjective)	wakeful (adjective)
lacking physical depth; having little spatial extension downward or inward from an outer surface or backward or outward from a center	carefully observant or attentive; on the lookout for possible danger
not deep or strong; not affecting one deeply	marked by full consciousness or alertness
lacking depth of intellect or knowledge; concerned only with what is obvious	(of sleep) easily disturbed

shallow (verb)	wakeful (verb)
become shallow
make shallow