Nonstandard (adjective)

Not conforming to a standard or accepted norm.

Origin:

Non- + standard.

Examples:

1. The company uses nonstandard methods of production.
2. The test results were nonstandard and required further analysis.
3. The nonstandard measurements required adjustments to the design.
4. The nonstandard approach led to new discoveries.
5. The nonstandard form of the phrase made it hard to understand.