What is the definition of arbitrary?

Arbitrary means based on random choice or personal whim, rather than any reason or system. It implies a lack of reason, logic, or necessity.

Here are some synonyms for arbitrary:

* Random

* Unpredictable

* Capricious

* Whimsical

* Unjustified

* Unreasonable

Here are some examples of how "arbitrary" can be used:

* "The teacher's grading system was arbitrary, with no clear criteria for awarding marks." (The teacher's grading system was based on their personal preferences and not on a defined system.)

* "The company's decision to fire the employee was arbitrary, as there was no evidence of wrongdoing." (The company's decision was not based on any reasonable justification or evidence.)

* "The choice of colors for the new website was arbitrary, as there was no design logic behind them." (The color choices were not based on any design principles or user experience considerations.)

Key takeaways:

* Arbitrary implies a lack of logic or justification.

* It often refers to decisions or choices that seem unfair or unjustified.

* The opposite of arbitrary would be something that is systematic, rational, or justified.