Is "logical" the same as "reasonable"?

They are close, but not identical. Logical means based on clear reasoning; reasonable means fair or sensible.

Can I use "logical" for a person?

Yes, but it is more common for ideas, plans, and arguments. For people, "rational" or "sensible" may sound more natural.

Is "logical" formal or informal?

It is neutral and common in both speech and writing. It is especially useful in academic and business English.

← Dictionary

logical

/ˈlɒdʒ.ɪ.kəl/

IELTSAcademic

adjective

Based on clear thinking and good reasoning. A logical idea, answer, or plan makes sense step by step.

That is a logical answer.
We need a logical plan for the project.
Her explanation sounded logical.

Adinary Nuance

Logical is about clear reasoning and a step-by-step way of thinking. It is close to 'reasonable', but 'logical' focuses more on structure and facts. It is also different from 'rational', which often suggests calm, sensible judgment in people and decisions. Use 'logical' when you want to say something follows a clear line of thought.

In other languages

Vietnamese: hợp lý
Spanish: lógico
Chinese: 合乎逻辑
Japanese: 論理的な
Korean: 논리적인

Etymology

Logical comes from Greek logikos, from logos meaning 'word', 'reason', or 'speech'. It entered English through Latin and French in the 16th century.

Common phrases

logical thinkinglogical orderlogical argumentlogical conclusion

Synonyms

reasonable rational sensible well-reasoned

Frequently asked questions

Is "logical" the same as "reasonable"?: They are close, but not identical. Logical means based on clear reasoning; reasonable means fair or sensible.
Can I use "logical" for a person?: Yes, but it is more common for ideas, plans, and arguments. For people, "rational" or "sensible" may sound more natural.
Is "logical" formal or informal?: It is neutral and common in both speech and writing. It is especially useful in academic and business English.