nonstandard

adj

1. Not standard.
2. Not conforming to the standard variety, or to the language as used by the majority of its speakers.

   “The resulting sequence of covert wh-pronoun + Complementiser has an overt counterpart in nonstandard varieties of English, as the following example (recorded from a BBC radio programme) illustrates: (91) England put themselves in a position [whereby that they took a lot of credit for tonightʼs game] (Ron Greenwood, BBC radio 4)”

noun

1. Something that is not standard.

   “Unlike the TV standard we are all accustomed to, the Web is the wild, wild West of video nonstandards.”