Adjective: nonstandard 'nón'stan-du(r)d
- Varying from or not adhering to a standard
"nonstandard lengths of board"; "nonstandard windows"; "envelopes of nonstandard sizes"
- Not standard; not accepted as a model of excellence
"a nonstandard text"
- (linguistics) not conforming to the language usage of a prestige group within a community
"a nonstandard dialect is one used by uneducated speakers or socially disfavoured groups"; "the common core of nonstandard words and phrases in folk speech"
See also: amount, bad, deficient, inferior, measure, nonnormative, quantity, substandard, unacceptable, unaccepted
Encyclopedia: Nonstandard