random
gb/ɹˈændəm/ us/ɹˈændəm/
B1
英語
~ 1900
語義
0件の語義
adjective
B1
property
1
Without plan or order
Happening without any plan or clear reason.
用法パターン：
[something] is random
よくある間違い：
Learners sometimes confuse 'random' with 'rare' or 'unusual', but 'random' means without plan or pattern, not necessarily uncommon.
類義語
arbitrary (Often implies being based on personal whim rather than logic or system.)
対義語
planned (Implies something arranged in advance with a clear purpose.)
コロケーション
random choice
|random sample
|random event
|completely random
|seemingly random
テーマ
daily life
|thinking
|decision-making
|core_vocabulary
例文
- The seating arrangement seemed completely random.
- We made a random selection of participants for the study.
- A random noise came from the kitchen in the middle of the night.
- The numbers are generated by a random process.
- She grabbed a random book from the shelf.
学習者向け例文
- The order of the names is random.
- He asked a random question.
- I saw a random man on the street.
- We chose a random card from the deck.
- The teacher picked a random student to answer.
adjective
informal
B2
property
2
Strange or out of place
Used to say something is strange or not related to what is happening.
用法パターン：
That's random!
よくある間違い：
Learners may think this use means 'chosen without plan', but in informal speech it often means 'strange' or 'unrelated'.
類義語
weird (More focused on being strange or unusual rather than unrelated.)
対義語
relevant (Directly connected to the topic or situation.)
コロケーション
that's random
|really random
|kind of random
テーマ
slang
|conversation
|core_vocabulary
例文
- He started talking about penguins in the middle of our meeting. That was so random.
- Why did she bring up that random story?
- It feels kind of random that they invited him.
学習者向け例文
- That was a random thing to say.
- She told a random joke in class.
- He made a random comment about cats.
名詞
technical
B1
entity
3
Lack of pattern in selection
A way of choosing or doing something without any plan or order.
用法パターン：
[something] is chosen at random
類義語
chance (Focuses on the role of luck rather than absence of pattern.)
対義語
system (Implies an organized method or pattern.)
コロケーション
at random
|pure random
|true random
テーマ
science
|statistics
|core_vocabulary
例文
- The subjects were assigned to groups at random.
- Cards were dealt at random to each player.
- At random, he picked a name from the list.
学習者向け例文
- We chose the winner at random.
- The teacher called on students at random.
- She picked a number at random.
文法
辞書形
random
IPA
GB/ɹˈændəm/
US/ɹˈændəm/
音節・強勢
ran - dom （2音節）
Stress on 1st syllable (ran)
活用形
Adjective
- Base: random
関連語
Core family
randomly
adverb B2
randomness
noun
Related words
randomize
verb B2
Negative and opposite forms
nonrandom
adjective
Advanced or less common
randomization
noun C1
randomizer
noun
表現
pick at random
1/pˈɪk ˈæt ɹˈændəm/
fixed phrase
Choose without plan or order
To choose something without any plan; by chance.
例文
- We picked three names at random from the list.
- She picked a card at random from the deck.
at random
1/ˈæt ɹˈændəm/
fixed phrase
Without method or pattern in choice/action
Without any plan or order.
例文
- The teacher called on students at random.
- The books were stacked at random on the table.
- The inspector chose five stores at random to visit.
- The books were placed on the shelf at random.
- Winners will be selected at random from all entries.
- Guns were fired at random into the crowd.
- I opened the book at random and started reading.