adjective
1.
( of language ) not considered correct by most educated people :
non-standard dialects
non-standard English
—compare standard
2.
not the usual size, type, etc. :
The paper was of non-standard size.
adjective
1.
( of language ) not considered correct by most educated people :
non-standard dialects
non-standard English
—compare standard
2.
not the usual size, type, etc. :
The paper was of non-standard size.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005