nonstandard

“nonstandard windows”

“envelopes of nonstandard sizes”

“nonstandard lengths of board”

Synonyms: deficient, inferior, substandard
falling short of some prescribed norm; nonnormative
not based on a norm

Antonyms:: standard
conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind; normal
conforming with or constituting a norm or standard or level or type or social norm; not abnormal; modular
constructed with standardized units or dimensions allowing flexibility and variety in use; regular
conforming to a standard or pattern; regulation
prescribed by or according to regulation; standardised, standardized
brought into conformity with a standard; stock
routine; show more antonyms...

“a nonstandard text”

Antonyms:: standard
established or well-known or widely recognized as a model of authority or excellence; orthodox
adhering to what is commonly accepted; authoritative, classic, classical, definitive
of recognized authority or excellence; basic, canonic, canonical
reduced to the simplest and most significant form possible without loss of generality; casebook, textbook
according to or characteristic of a casebook or textbook; typical; criterial, criterional
serving as a basis for evaluation; show more antonyms...

“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”

Synonyms: bad
nonstandard; unacceptable, unaccepted
not conforming to standard usage

Antonyms:: received, standard
conforming to the established language usage of educated native speakers; acceptable
judged to be in conformity with approved usage; classical
(language) having the form used by ancient standard authors; show more antonyms...

DEFINITIONS OF: nonstandard