RhymeZone: nonstandard definitions

Definitions of nonstandard:

adjective: not standard; not accepted as a model of excellence
Example: "A nonstandard text"
adjective: varying from or not adhering to a standard
Example: "Nonstandard windows"
adjective: not conforming to the language usage of a prestige group within a community
Example: "A nonstandard dialect is one used by uneducated speakers or socially disfavored groups"