nonstandard

• ⇰ varying from or not adhering to a standard; <as>as, <ex>nonstandard</ex> windows; envelopes of <ex>nonstandard</ex> sizes; <ex>non-standard</ex> lengths of board cost more per foot</as>. Opposite of <ant>standard</ant>.
• ⇰ Not conforming to the language usage of a prestige group within a community; <as>as, a <ex>nonstandard</ex> dialect is one used by uneducated speakers or socially disfavored groups</as>. Opposite of <ant>standard</ant>.