Cool MateDumb vs Foolish
When to use each in English, with meaning, register, and examples.
Dumb
InformalTop 1,000 (very common)C1adjective
Foolish
Top 2,000 (common)
Most formal: FoolishMost common: Dumb
| Dumb | Foolish | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/dʌm/"]/🇺🇸 /["/dʌm/"]/ | 🇬🇧 //ˈfuːlɪʃ//🇺🇸 //ˈfuːlɪʃ// |
| Meaning | Not smart or unable to think clearly. | Not smart or sensible; lacking good judgement. |
| Example | He felt dumb after forgetting the answer to such a simple question. | It was foolish to invest all his savings in that risky project. |
| Register | Informal | Neutral |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | C1 | - |
| Part of speech | adjective | |
| Collocations | be, feel, look, extremely, fairly, very, be, become, be struck, with, deaf and dumb, be, become, be struck, with, deaf and dumb | foolish mistake, foolish behavior, foolish decision, foolish question, foolish idea |
| Antonyms | smart, intelligent, clever | wise, sensible, prudent, smart |
| Common mistakes | Using 'dumb' to describe someone who is mute (correct term is 'mute')., Confusing with 'deaf' (dumb doesn't mean unable to hear)., Using as a formal descriptor in professional settings. | Confusing 'foolish' with 'silly' - 'foolish' implies a lack of wisdom while 'silly' is lighter., Using 'foolish' as a noun - it's strictly an adjective., Incorrectly spelling 'foolish' as 'foolosh'. |
| Usage notes | Often used informally to describe someone as not intelligent. Be cautious; using 'dumb' in a derogatory way can be offensive. Consider using 'unintelligent' in formal contexts. | Use 'foolish' in both formal and informal contexts when describing decisions or actions that lack wisdom. Avoid using it in serious or sensitive situations where it might offend the person involved. |
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Frequently asked questions: Dumb vs Foolish
What's the difference between Dumb and Foolish?
Dumb: Not smart or unable to think clearly. Foolish: Not smart or sensible; lacking good judgement.
Which is more formal: Dumb and Foolish?
Foolish is the most formal of these.
Which is more common: Dumb and Foolish?
Dumb is the most common in everyday English.
Can you show an example of each?
Dumb: He felt dumb after forgetting the answer to such a simple question. Foolish: It was foolish to invest all his savings in that risky project.
Can I use Dumb and Foolish interchangeably?
Not always. Dumb and Foolish are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.