arbitrary

word

Definition

Done without a clear reason, rule, or system; often based on personal choice rather than logic or fairness.

Usage & Nuances

"Arbitrary" is formal, often critical, and describes decisions or rules that seem random, unfair, or not based on reason. Common in legal, technical, or academic contexts. Not used for positive or neutral choices.

Example Sentences

He picked an arbitrary number just to fill out the form.

natural

There are arbitrary rules that nobody understands.

basic

The teacher made an arbitrary decision about the seating arrangement.

basic

Her choice of color seemed arbitrary.

basic

Don't follow arbitrary instructions—ask for a clear explanation.

natural

It feels arbitrary that only some people get extra benefits.

natural