deficient vs shy

deficient is not a noun while shy is a noun.

Word	Noun	Adjective	Verb	Adverb
deficient	No	Yes	No	No
shy	Yes	Yes	Yes	No

deficient (noun)	shy (noun)
	a quick throw

deficient (adjective)	shy (adjective)
of a quantity not able to fulfill a need or requirement	lacking self-confidence
inadequate in amount or degree	short
falling short of some prescribed norm	wary and distrustful; disposed to avoid persons or things

deficient (verb)	shy (verb)
	throw quickly
	start suddenly, as from fright