arbitrary

/ˈɑːrbɪtrəri/
adjective
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Definition

1

Based on random choice or whim, rather than reason or system

The teacher's arbitrary decision to give a pop quiz caught everyone off guard.

2

Lacking a clear or logical basis; capricious

The company's arbitrary pricing strategy made it difficult for customers to understand their bills.

Synonyms

randomFocuses on the lack of pattern or predictability, often used in informal contexts capriciousImplies a sense of unpredictability and volatility, often used to describe people or situations whimsicalHas a more playful and fanciful tone, often used to describe creative or artistic decisions

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