Simple Examples:
* The teacher assigned arbitrary homework, choosing topics seemingly at random.
* The decision to close the library at that specific time seemed arbitrary and unfair.
* The company's dress code felt arbitrary and outdated.
Examples with Context:
* The judge's sentencing guidelines seemed arbitrary and lacked any clear reasoning.
* The selection of the winning team was arbitrary, as the scores were too close to call.
* Scientists tried to find a pattern in the data, but it seemed to be completely arbitrary.
Formal Examples:
* The study's methodology was criticized for using arbitrary sampling methods.
* The use of arbitrary power by the government led to widespread discontent.
* The definition of "success" is arbitrary and can vary depending on individual values.
Remember: "Arbitrary" often implies a lack of reason, logic, or fairness in a decision or choice.