arbitrary
Something is arbitrary if it is chosen randomly rather than for a specific reason.
Explanation at your level:
If you choose something for no reason, it is arbitrary. You might pick a color because you like it today, but not because it is the best color. It is just a random choice.
An arbitrary choice is one made without a plan. If a teacher says 'everyone must stand up' for no reason, that is an arbitrary rule. It can feel a bit strange or unfair to others.
When you describe a decision as arbitrary, you mean it was not based on facts or logic. It is often used in business or school to criticize rules that seem to have no purpose. It is a useful word for expressing frustration with unfair systems.
The term arbitrary is frequently used to discuss power and authority. When someone in a position of power makes an arbitrary decision, they are acting on their personal whim rather than following established guidelines. It highlights a lack of accountability.
In advanced discourse, arbitrary often describes symbols or linguistic signs. For example, language itself is arbitrary because the word 'dog' does not actually look or sound like a real dog; we just agreed to call it that. This highlights the distinction between inherent meaning and social convention.
At the C2 level, we explore the philosophical implications of arbitrary systems. In mathematics and logic, an arbitrary element is one chosen from a set without specific criteria. This usage underscores the difference between 'randomness' and 'selection'. Historically, the word has transitioned from describing the 'absolute power of a sovereign' to the 'randomness of a choice', reflecting a cultural shift toward rationalism and the demand for evidence-based decision-making in governance and science.
30秒词汇
- Arbitrary means based on random choice rather than logic.
- It is often used to describe rules or decisions that seem unfair.
- The noun form is 'arbitrariness' and the adverb is 'arbitrarily'.
- It comes from the Latin word for a judge.
When we call something arbitrary, we are usually pointing out that it lacks a solid foundation in logic or rules. Imagine you have to pick a winner for a contest, but instead of checking who did the best work, you just pick the person wearing a blue shirt. That decision is arbitrary because it is based on a random, personal whim rather than a fair system.
In daily life, we often use this word to describe rules that feel pointless. If a teacher says you can only use blue pens, and there is no reason for that rule, you might call it an arbitrary rule. It is a powerful word because it signals that something feels disconnected from fairness or necessity.
The word arbitrary comes from the Latin word arbiter, which means a judge, witness, or someone who has the power to decide. An arbiter was someone who could settle a dispute based on their own judgment rather than a strict law.
Over time, the word evolved into the French arbitraire before entering English in the 14th century. Originally, it was used to describe power that was absolute—meaning a ruler could do whatever they wanted. Eventually, the meaning shifted to describe choices that are random or capricious, moving away from the idea of a 'judge' and toward the idea of 'randomness'.
You will most often hear arbitrary in professional or academic contexts. It is frequently used with nouns like decision, rule, choice, or detention. For example, 'The manager made an arbitrary decision to change the schedule.' It carries a slightly negative tone because it implies that the person in charge is acting without considering others.
In more casual settings, you might hear people say, 'That's so arbitrary!' when they feel frustrated by a situation that doesn't make sense. It is a great word to use when you want to sound precise about why a situation feels unfair or disorganized.
While 'arbitrary' isn't part of many set idioms, it is often used alongside phrases like at the drop of a hat (doing something suddenly) or by whim. Here are five ways to express the concept of randomness:
- On a whim: Doing something spontaneously without planning.
- At random: Choosing without a specific pattern.
- Capricious nature: Describing someone who changes their mind constantly.
- Shot in the dark: A guess made with no information.
- Wild card: Something that is unpredictable and can change everything.
Arbitrary is an adjective. It does not have a plural form. To make it an adverb, we add 'ly' to get arbitrarily. The stress is on the first syllable: AR-bi-trer-ee.
In the UK, the pronunciation is often /'ɑːbɪtrəri/, while in the US, it is /'ɑːrbɪtrɛri/. It rhymes with words like contrary or military. Remember that it is a four-syllable word, though in fast speech, the middle 'i' is often dropped, making it sound like 'ar-bi-tree'.
Fun Fact
It originally referred to a judge's power to decide something based on their own wisdom.
Pronunciation Guide
Starts with 'ar', then 'bi-truh-ree'.
Stronger 'r' sounds, 'treh-ree' ending.
Common Errors
- dropping the 'r' in the middle
- stressing the second syllable
- mispronouncing the 'tr' sound
Rhymes With
Difficulty Rating
Easily found in news and academic texts.
Requires careful placement.
Useful for expressing opinion.
Common in formal speech.
What to Learn Next
Prerequisites
Learn Next
高级
Grammar to Know
Adjective placement
The arbitrary choice.
Adverb formation
He decided arbitrarily.
Linking verbs
It seems arbitrary.
Examples by Level
The choice was arbitrary.
The choice / was / random.
Adjective after verb 'to be'.
It was an arbitrary rule.
It was / a / random / rule.
Adjective before noun.
Don't be arbitrary.
Do not / be / random.
Imperative form.
The colors are arbitrary.
The colors / are / random.
Plural subject.
Is this arbitrary?
Is this / random?
Question form.
Her choice felt arbitrary.
Her choice / felt / random.
Linking verb 'felt'.
An arbitrary start.
A / random / start.
Article 'an' before vowel sound.
It is not arbitrary.
It is / not / random.
Negative form.
The judge made an arbitrary decision.
The rules seem arbitrary to me.
He chose a number in an arbitrary way.
Why is this rule so arbitrary?
The assignment of seats was arbitrary.
She gave an arbitrary answer.
Their meeting time was arbitrary.
The punishment felt arbitrary.
The pricing of the items seems completely arbitrary.
We cannot make arbitrary changes to the project plan.
The selection process was criticized for being arbitrary.
He made an arbitrary choice based on his mood.
The law prevents arbitrary arrests by the police.
The teacher's grading system felt a bit arbitrary.
It is an arbitrary standard that no one understands.
The location for the new office was chosen in an arbitrary manner.
The arbitrary nature of the test caused a lot of confusion.
Critics argued that the policy was an arbitrary exercise of power.
The government was accused of making arbitrary changes to the tax code.
There is nothing arbitrary about the way he designs his buildings.
The decision was based on arbitrary criteria rather than merit.
He rejected the proposal for being too arbitrary.
Arbitrary detention is a violation of human rights.
The system is designed to avoid arbitrary outcomes.
The relationship between the signifier and the signified is essentially arbitrary.
He challenged the arbitrary authority of the committee.
The algorithm makes decisions that appear arbitrary to human observers.
In a legal context, arbitrary actions are often grounds for an appeal.
The arbitrary imposition of taxes led to a public outcry.
We must distinguish between necessary rules and arbitrary ones.
His argument was dismissed as an arbitrary collection of facts.
The arbitrary sequence of events suggested a lack of planning.
The arbitrary nature of aesthetic judgment has been debated for centuries.
The sovereign's arbitrary will was the only law in the land.
The arbitrary assignment of values in this model leads to inconsistent results.
She critiqued the arbitrary boundaries drawn by the colonial powers.
The mathematical proof relies on an arbitrary constant.
The narrative structure is intentionally arbitrary to reflect the chaos of life.
The arbitrary enforcement of the code created a culture of fear.
His philosophy rejects the notion that reality is purely arbitrary.
反义词
常见搭配
Idioms & Expressions
"at the whim of"
controlled by someone's random moods
We are at the whim of the manager.
neutral"by chance"
happening without a plan
We met by chance.
neutral"flip of a coin"
a random decision
It was a flip of a coin.
casual"pick and choose"
to select selectively
You can't just pick and choose the rules.
neutral"hit or miss"
not consistently good
The service is hit or miss.
casual"at random"
without a specific order
Pick a name at random.
neutralEasily Confused
Both imply lack of pattern.
Random is purely mathematical; arbitrary implies a choice was made.
A random number vs. an arbitrary rule.
Same root word.
Arbitrator is the person; arbitrary is the adjective.
The arbitrator made an arbitrary decision.
Both mean unpredictable.
Capricious describes temperament; arbitrary describes decisions.
A capricious person makes arbitrary choices.
Both lack objective logic.
Subjective is based on personal opinion; arbitrary is based on no logic at all.
Subjective taste vs. arbitrary rules.
Sentence Patterns
Subject + is + arbitrary
The decision is arbitrary.
An + arbitrary + noun
An arbitrary rule.
Act + in an + arbitrary + manner
They acted in an arbitrary manner.
Criticize + for being + arbitrary
He was criticized for being arbitrary.
The + arbitrary + nature of + noun
The arbitrary nature of the law.
词族
Nouns
Verbs
Adjectives
相关
How to Use It
7
Formality Scale
常见错误
Arbitrary means random, not small.
The noun form ends in -ness.
Do not double the 'ly'.
Unfair implies malice; arbitrary implies lack of logic.
One is an adjective, one is a noun.
Tips
Memory Palace Trick
Imagine a judge (arbiter) throwing a dart at a board to decide a case.
When Native Speakers Use It
When they feel a rule is stupid or unfair.
Cultural Insight
It's a key word in debates about government power.
Grammar Shortcut
It almost always comes before a noun or after a linking verb.
Say It Right
Focus on the 'ar' at the start.
Don't Make This Mistake
Don't confuse it with 'arbitrator' (the person).
Did You Know?
It comes from the Latin word for a judge.
Study Smart
Use it in a sentence about your school's rules.
Writing Tip
Use it to add weight to your arguments.
Speaking Tip
Use it to express frustration politely.
Memorize It
Mnemonic
AR-bi-TRA-ry: ARbiters TRAin to be random.
Visual Association
A judge flipping a coin.
Word Web
挑战
Find three things in your room that are placed in an arbitrary way.
词源
Latin
Original meaning: Judge or witness
文化背景
Can be offensive if used to describe someone's personal choices as 'pointless'.
Used often in legal and bureaucratic contexts.
Practice in Real Life
Real-World Contexts
Workplace
- arbitrary schedule
- arbitrary change
- arbitrary policy
School
- arbitrary rule
- arbitrary grading
- arbitrary punishment
Law
- arbitrary arrest
- arbitrary power
- arbitrary detention
Linguistics
- arbitrary symbol
- arbitrary sign
- arbitrary nature of language
Conversation Starters
"Have you ever felt a rule at work or school was completely arbitrary?"
"Do you think all laws are based on logic, or are some arbitrary?"
"Can you think of an arbitrary choice you made recently?"
"Why do you think language is often called arbitrary?"
"Is it better to have an arbitrary rule or no rule at all?"
Journal Prompts
Describe a time you felt a decision made by someone else was arbitrary.
Write about a rule you would change if you were in charge.
Reflect on why humans need rules instead of just making arbitrary choices.
How does the arbitrary nature of language affect how we communicate?
常见问题
8 个问题Usually, yes, as it implies a lack of fairness or logic.
You can describe a person's behavior as arbitrary.
Arbitrarily.
Yes, it is common in academic and professional writing.
AR-bi-trer-ee.
Not necessarily, but 'arbitrary detention' is an illegal act.
Yes, but 'arbitrary' implies a choice was made, whereas 'random' can just be a state of being.
To show that words don't have a natural connection to what they describe.
自我测试
The rules were ___ chosen.
We need an adverb to describe how they were chosen.
What does arbitrary mean?
Arbitrary means lacking a logical reason.
An arbitrary decision is based on a clear, logical system.
It is based on random choice, not a logical system.
Word
意思
Matching synonyms and antonyms.
Standard subject-verb-adjective order.
The judge's ruling was criticized as ___.
Arbitrary fits the context of a criticized ruling.
Which is a synonym for arbitrary?
Capricious implies a similar lack of firm logic.
Language is often described as arbitrary.
The sounds of words are not inherently connected to their meaning.
Complex noun phrase structure.
Word
意思
Advanced synonym matching.
得分： /10
Summary
An arbitrary decision is one made on a whim, without a clear reason to back it up.
- Arbitrary means based on random choice rather than logic.
- It is often used to describe rules or decisions that seem unfair.
- The noun form is 'arbitrariness' and the adverb is 'arbitrarily'.
- It comes from the Latin word for a judge.
Memory Palace Trick
Imagine a judge (arbiter) throwing a dart at a board to decide a case.
When Native Speakers Use It
When they feel a rule is stupid or unfair.
Cultural Insight
It's a key word in debates about government power.
Grammar Shortcut
It almost always comes before a noun or after a linking verb.
例句
I made an arbitrary choice to wear blue today instead of red.
Related Content
这个词在其他语言中
更多Law词汇
abfinor
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abfortious
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abide
C1指遵守规则、决定或建议。也可以表示忍受某人或某种情况。
abjugcy
C1被解除束缚或从束缚、负担或奴役状态中解放出来的状态或行为。
abolished
B2abolished 的意思是正式废除某事物，通常是长期的制度或习俗。
abrogate
C1正式废除法律或协议。指官方取消某项规定或条约的效力。
abscond
C1偷偷地突然逃跑，常为逃避惩罚。有时也指卷款潜逃。
absolve
C1To formally declare someone free from guilt, obligation, or punishment, especially after a legal proceeding or a religious confession. It suggests a complete release from the consequences or blame associated with an action.
accomplice
C1An accomplice is a person who helps someone else commit a crime or a dishonest act. This individual is legally or morally responsible for their involvement, even if they were not the primary person performing the act.
accord
C1双方之间的正式协议或条约。也指事物之间和谐一致的状态。
