logical
gb/lˈɑd͡ʒɪkəl/ us/lˈɑd͡ʒɪkəl/
B1
英語
~ 5800
語義
0件の語義
adjective
B1
property
1
reasonable; based on good reasons
Making sense because it is based on clear and good thinking.
用法パターン：
[something] is a logical [decision/argument/explanation]
よくある間違い：
Learners sometimes say *"unlogical"* instead of *"illogical"*. The correct opposite of "logical" in this sense is "illogical". They may also confuse "logical" with "logically": use "logical" before a noun (a logical answer) or after "be" (the answer is logical), and use "logically" as an adverb (She explained it logically).
類義語
reasonable (Very close in meaning; slightly more about being fair and sensible in a real-life situation.)
|
rational (Stresses thinking based on reason rather than emotion; often a bit more formal.)
|
coherent (Focuses on the parts of an argument or text fitting together clearly and consistently.)
対義語
illogical (Direct opposite; not following clear reasoning or not making sense.)
|
irrational (Guided by emotion or impulse instead of clear reason.)
コロケーション
logical argument
|logical explanation
|logical conclusion
|logical decision
|logical structure
|perfectly logical
テーマ
thinking
|argumentation
|education
|daily life
|communication
|core_vocabulary
例文
- Her proposal is logical and easy to follow.
- That seems like the most logical explanation for the error.
- If we look at the data, a price cut is the only logical option.
- The book is well written, but its main argument is not entirely logical.
学習者向け例文
- His idea is simple and logical.
- This is a logical way to solve the problem.
- Your plan sounds logical to me.
- The teacher asked us to give a clear, logical answer.
adjective
B2
property
2
able to think clearly and calmly
Describes a person who thinks in a clear and careful way and makes good, sensible decisions.
用法パターン：
[someone] is (a) logical [person/thinker]
よくある間違い：
Learners sometimes confuse describing a person (*"She is logical"*) with describing a single action (*"Her decision was logical"*). The first describes her usual way of thinking; the second describes only that one decision.
類義語
analytical (Stresses the ability to break problems into smaller parts; often used in work or study contexts.)
|
clear-headed (Emphasizes being able to think clearly, especially in difficult situations.)
対義語
emotional (Suggests someone is guided mainly by feelings rather than by calm reasoning.)
|
impulsive (Describes someone who acts without careful thought or planning.)
コロケーション
logical person
|logical thinker
|very logical
|calm and logical
|highly logical
|a logical mind
テーマ
personality
|thinking
|work
|education
|core_vocabulary
例文
- She is very logical and rarely lets her feelings control her decisions.
- We need a calm, logical person to lead the team through this crisis.
- He is a logical thinker, so he enjoys programming and math.
- Despite the chaos, her response remained cool and logical.
学習者向け例文
- My brother is very logical and plans everything.
- We chose her as the leader because she is calm and logical.
- He is not emotional; he is very logical.
- A logical person can help solve this problem.
adjective
B2
property
3
natural or expected result
Showing that something is the normal or expected result of what came before.
用法パターン：
the logical [result/next step/consequence]
よくある間違い：
Learners sometimes use "logical" here when they only mean "possible." "Logical" suggests that something clearly follows from earlier facts, not just that it could happen.
類義語
natural (Suggests something happens in a normal or expected way given the situation.)
|
inevitable (Stronger; suggests that something could not be avoided at all.)
対義語
unexpected (Describes a result or step that people did not see coming.)
|
illogical (Implies the result or step does not follow sensibly from the earlier situation.)
コロケーション
logical consequence
|logical outcome
|logical result
|logical next step
|logical progression
|logical choice
テーマ
cause and effect
|planning
|work
|thinking
|core_vocabulary
|communication
例文
- After years of dating, marriage was the logical next step.
- His resignation was the logical consequence of the scandal.
- Given her experience, promoting her to manager was the logical choice.
- Expanding into online sales is a logical progression for the company.
学習者向け例文
- After school, college was the logical next step for her.
- If you dont pay your bills, losing the service is a logical result.
- With your skills, this job is a logical choice.
- Moving to a bigger office is a logical step for a growing company.
adjective
technical
C1
property
4
about formal logic or operators
About the rules of thinking used in math, philosophy, or computers, not about feelings or everyday life.
用法パターン：
logical [operator/structure/error/system]
よくある間違い：
Learners sometimes confuse everyday "logical" with this technical sense. In computing, for example, a "logical error" is not about being sensible in normal life; it is about an error in the formal steps of the code.
類義語
formal (In this context, stresses following strict, abstract rules rather than everyday reasoning.)
|
deductive (Related to drawing specific conclusions from general rules in logic or mathematics.)
対義語
semantic (In logic and computing, contrasts with "logical" by focusing on meaning rather than form or structure.)
コロケーション
logical operator
|logical error
|logical structure
|logical framework
|logical system
|logical variable
テーマ
science
|technology
|mathematics
|philosophy
|education
例文
- In this chapter we will study basic logical operators such as AND, OR, and NOT.
- The program crashed because of a logical error in the code.
- The database has a clear logical structure but a very different physical one.
- Their theory is elegant, but it depends on a questionable logical assumption.
学習者向け例文
- In programming, you use logical operators like AND and OR.
- A logical error can make the program give the wrong answer.
- We learned how to draw a logical diagram of the argument.
- The course teaches basic logical rules in philosophy.
文法
表現
it's only logical (that ...)
1/ˈɪts ˈoʊnli lˈɑd͡ʒɪkəl ðˈæt |/
fixed phrase
it makes complete sense that
Used to say that something is completely reasonable and expected in a situation.
例文
- Its only logical that prices will rise if demand keeps increasing.
- You studied hard, so its only logical that you passed the exam.
- After such a long journey, its only logical that youre tired.
logical choice
1/lˈɑd͡ʒɪkəl t͡ʃˈɔɪs/
fixed phrase
most sensible option
The option that makes the most sense in a situation because of clear reasons.
例文
- Given her experience, she was the logical choice for the job.
- For a family of five, a minivan is the logical choice.
- With your love of nature, moving to the countryside seems like a logical choice.
logical conclusion
1/lˈɑd͡ʒɪkəl kəŋklˈuʒən/
fixed phrase
result that clearly follows
A result or belief that clearly follows from the facts or reasons you have.
例文
- If all the shops are closed, the logical conclusion is that its a public holiday.
- The logical conclusion from these figures is that our sales strategy is not working.
- From her silence, he drew the logical conclusion that she agreed.
logical consequence
1/lˈɑd͡ʒɪkəl kˈɑnsəkwəns/
fixed phrase
natural result of an action
A result that clearly and naturally happens because of an action or situation.
例文
- In this case, a fine is the logical consequence of breaking the law.
- Losing customer trust was the logical consequence of the data breach.
- For children, missing playtime can be a logical consequence of not doing homework.
logical progression
1/lˈɑd͡ʒɪkəl pɹəɡɹˈɛʃən/
fixed phrase
clear, sensible sequence of stages
A series of steps or stages that follow one another in a clear and sensible order.
例文
- The chapters follow a logical progression from theory to practice.
- The film lacks a logical progression, so the story is hard to follow.
- Her career shows a logical progression from intern to director.
logical reasoning
1/lˈɑd͡ʒɪkəl ɹˈizənɪŋ/
fixed phrase
clear, step-by-step thinking
Thinking in a clear, ordered way to reach a conclusion from facts or rules.
例文
- The test measures your logical reasoning, not your memory.
- Children develop logical reasoning skills at different ages.
- Good lawyers rely on strong logical reasoning as well as persuasion.
perfectly logical
1/pˈɚfəktli lˈɑd͡ʒɪkəl/
fixed phrase
completely reasonable and sensible
Used to strongly say that something makes complete sense and is based on clear thinking.
例文
- Your fear is perfectly logical after what happened.
- Its perfectly logical to ask questions if you dont understand.
- From his point of view, the decision was perfectly logical.
the logical next step
1/ðə lˈɑd͡ʒɪkəl nˈɛkst stˈɛp/
fixed phrase
the natural thing to do next
The action or change that most clearly and naturally should happen after earlier actions or events.
例文
- After launching in Europe, expansion to the US was the logical next step.
- For many students, getting a masters degree is the logical next step.
- Once you have saved enough money, buying a small flat is the logical next step.
to its logical conclusion
1/tə ˈɪts lˈɑd͡ʒɪkəl kəŋklˈuʒən/
fixed phrase
continue something to its natural end
To carry an idea, plan, or process on until it reaches the final result that clearly follows from it.
例文
- The committee has promised to pursue the investigation to its logical conclusion.
- If we take your argument to its logical conclusion, nobody would ever retire.
- The project was never taken to its logical conclusion because funding was cut.
logical fallacy
1/lˈɑd͡ʒɪkəl fˈæləsi/
fixed phrase
error in logical reasoning
A mistake in how reasons are used to support a point, so the logic of the argument does not really work.
例文
- The video explains five common logical fallacies found in online debates.
- Calling someone a hypocrite is not a logical fallacy by itself; it depends on how the point is used.
logical fallacy
2/lˈɑd͡ʒɪkəl fˈæləsi/
fixed phrase
technical
error in logical reasoning
A mistake in thinking where the steps of an argument are wrong, even if the result might look true.
例文
- Saying that something is popular so it must be right is a common logical fallacy.
- The teacher asked us to find the logical fallacy in the argument.
- His speech sounded impressive, but it was full of logical fallacies.