deficient vs nonstandard

deficient and nonstandard both are adjectives.

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

deficient (adjective)	nonstandard (adjective)
of a quantity not able to fulfill a need or requirement	not standard; not accepted as a model of excellence
inadequate in amount or degree	varying from or not adhering to a standard
falling short of some prescribed norm	not conforming to the language usage of a prestige group within a community