nonstandard

adjectives

not conforming to the language usage of a prestige group within a community
"a nonstandard dialect is one used by uneducated speakers or socially disfavored groups"; "the common core of nonstandard words and phrases in folk speech"- A.R.Dunlap
antonym
is similar to
nonstandard
"so-called bad grammar"
is similar to
not conforming to standard usage
"the following use of `access' was judged unacceptable by a panel of linguists; `You can access your cash at any of 300 automatic tellers'"
domain category
the scientific study of language
varying from or not adhering to a standard
"nonstandard windows"; "envelopes of nonstandard sizes"; "nonstandard lengths of board"
antonym
is similar to
falling short of some prescribed norm
"substandard housing"
is similar to
not based on a norm
is an attribute of
how much there is or how many there are of something that you can quantify
not standard; not accepted as a model of excellence
"a nonstandard text"
antonym