An example of an arbitrary decision would be a decision to go to the beach, just because you feel like it.
An example of arbitrary behavior would be getting mad at someone even when they haven't done anything wrong.
The diet imposes overall calorie limits, but daily menus are arbitrary.
Arbitrary decision, arbitrary judgment.
Young children and their arbitrary rules for games.
Stopped at the first motel we passed, an arbitrary choice.
Benjamin Franklin's designation of "positive" and "negative" to different charges was arbitrary. In fact, electrons flow in the opposite direction to conventional current.
The decision to use 18 years as the legal age of adulthood was arbitrary, as both age 17 and 19 were reasonable alternatives.
An arbitrary penalty.
The arbitrary rule of a dictator.
To secure food safety, there should first be a national standard to arbitrarily state what is wholesome and what is not; second, the final buyer should know exactly what he is purchasing. (The World's Work ...: a history of our time)
The equation is true for an arbitrary value of x.
Origin of arbitrary
- Middle English arbitrarie from Latin arbitrārius from arbiter arbitr- arbiter arbiter
From American Heritage Dictionary of the English Language, 5th Edition