- not standard.
- not conforming in pronunciation, grammar, vocabulary, etc., to the usage characteristic of and considered acceptable by most educated native speakers; lacking in social prestige or regionally or socially limited in use: a nonstandard dialect; nonstandard English.Compare standard(def 27).
- Mathematics. of or relating to a generalized system of numbers that includes the real numbers but also includes infinite and infinitesimal numbers: nonstandard analysis.
Origin of nonstandard
A term labeled Nonstandard in this dictionary is one that is thought to be characteristic of the speech of persons with little education—a term that is often regarded as a marker of low social status.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nonstandard
Alternatively, the cancer could have spread during the nine months that Jobs was experimenting with nonstandard therapies.Jobs’s Unorthodox Treatment
October 6, 2011
Where the hell did my subway pass get off on finking me out for having a "nonstandard ride pattern?"
Oh, you mean riding public transit in a nonstandard way isn't a crime?
- denoting or characterized by idiom, vocabulary, etc, that is not regarded as correct and acceptable by educated native speakers of a language; not standard
- deviating from a given standard