- 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 non-standard
How was the requirement for the F-35B to VL on a non-standard runway framed?Why Can’t America’s Newest Stealth Jet Land Like It’s Supposed To?
May 26, 2014
Dialect and other non-standard spellings have not been changed.The Wreck of the Grosvenor, Volume 2 of 3
William Clark Russell
There is a ten per cent extra charge for non-standard merchandise.Tangle Hold
F. L. Wallace
Every effort has been made to replicate this text as faithfully as possible, including any non-standard spelling.Where Love Is There God Is Also
Lyof N. Tolstoi
Anachronistic, non-standard, and inconsistent spellings retained as printed.Life Aboard a British Privateer in the Time of Queen Anne
Robert C. Leslie
Archaic, colloquial, and non-standard spellings retained as printed.
- 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
Word Origin and History for non-standard
Online Etymology Dictionary, © 2010 Douglas Harper