non-standard in AM usually use, and in BRIT sometimes use nonstandard Non-standard things are different from the usual version or type of that thing. The shop is completely out of non-standard sizes. standard
{s} not normal, not typical, not usual, not as widely accepted; (of a language, word or phrase) not thought of as being correct or in the form that is usually accepted as standard
not standard; not accepted as a model of excellence; "a nonstandard text" varying from or not adhering to a standard; "nonstandard windows"; "envelopes of nonstandard sizes"; "nonstandard lengths of board" not conforming to the language usage of a prestige group within a community; "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
not conforming to the language usage of a prestige group within a community; "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