arbitrary - Master This Word
Master this word with our 5-step learning method – Learn English in English
arbitrary Word Meanings
- Determined by chance or whim rather than by necessity.
- Not based on any principle or system.
- Given to personal opinions or whims.
arbitrary Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
arbitrary Phonetic & Pronunciation
UK
/ˈɑːbɪtri/
US
/ˈɑːrbɪtʃeri/
arbitrary Word Etymology
arbitrary = arbitra- (to judge) + -ary (pertaining to) → Latin 'arbitrare' → Old French 'arbitraire' → English. Visualize a judge in a robe deciding cases on a whim, with a gavel raised as he leans back in his chair, emphasizing unpredictability.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputEnglish Brain Route
I reach for a small dial and move it, watching the dial's pointer drift and the image shift. A push, a pull, and no rule seems to govern what comes next. I adjust my grip and hold my breath, letting the moment decide how far I turn. The result feels arbitrary, something decided by mood in the moment rather than by plan.
Real Context
Arbitrary describes decisions made by chance or whim rather than by reason or necessity. In everyday use it suggests a lack of justification or pattern, such as choosing a color, seat, or rule without a clear rationale. In formal contexts it can imply that a rule is capricious or imposed without a principled basis. The sense 'given to personal opinions or whims' highlights how choices may reflect mood rather than logic. Etymologically, arbitrary comes from Latin arbitrare meaning to judge, with the suffix -ary meaning pertaining to; the modern sense preserves that judge-like connotation, but without a fixed framework.
Usage Reminders
- Remember: compare arbitrary with capricious, random, and whimsical; use in contexts like rules or decisions; not every whim is 'arbitrary' in formal writing; avoid mixing with 'necessary' or 'deterministic'; check whether there is a principle behind the choice; note the etymology helps distinguish judge-like sense from mere chance.
Common Misconceptions
- Arbitrary always means completely random.
- It implies something is always unfair or irrational.
- It is the same as 'random' in all settings.
- It only appears in legal or mathematical contexts.
- Using it means there is no choice involved.
Thinking Differences
Confusion often comes from treating arbitrary as entirely random; in English we often contrast capricious, whimsical, and random, but arbitrary emphasizes a lack of justified principle, not just chance.
Learning Tips
- Compare with capricious, whimsical, and random to sense nuance.
- Note when a rule is described as arbitrary vs. merely inconvenient.
- Pay attention to context: legal vs. everyday speech changes nuance.
- Remember the etymology: judging implies a judgment call, not pure randomness.
- Practice with opposite pairs: arbitrary vs necessary or deterministic.
- Use in writing to describe decisions lacking principled basis.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of 'arbitrary'?
A.Simple
B.Random
C.Intentional
D.Complicated
Step 2: Usage
In which sentence is 'arbitrary' used correctly?
A.The teacher provided arbitrary instructions for the assignment.
B.She made an arbitrary decision without any thought.
C.His arbitrary kindness was appreciated by all.
D.Their friendship was based on arbitrary trust.
Step 3: Similar Words
What is a synonym for 'arbitrary'?
A.Purposeful
B.Random
C.Specific
D.Careful
Step 4: Opposite Words
What is an antonym for 'arbitrary'?
A.Calculated
B.Unplanned
C.Chance
D.Capricious
Step 5: Mastery
In what real-life situation would 'arbitrary' be used?
A.In an unpredictable natural disaster
B.During a controlled scientific experiment
C.In a planned and organized event
D.In a legal trial with arbitrary rules
Want to practice more words?
Download LexiTalk app for personalized learning experience
Download App