Cautious vs Haven't been stupid enough

When to use each in English, with meaning, register, and examples.

Cautious

Top 2,000 (common)C1adjective

Haven't been stupid enough

InformalTop 5,000 (fairly common)
Most formal: CautiousMost common: Cautious
 CautiousHaven't been stupid enough
Pronunciation🇬🇧 //ˈkɔː.ʃəs//🇺🇸 //ˈkɔː.ʃəs//🇬🇧 //ˈhæv(ə)nt bɪn ˈstjuːpɪd ɪˈnʌf//🇺🇸 //ˈhæv(ə)nt bɪn ˈstuːpɪd ɪˈnʌf//
MeaningCareful to avoid danger or risks.Not being foolish or silly
ExampleShe was very cautious about investing her savings.I haven't been stupid enough to invest in that scheme.
RegisterNeutralInformal
How commonTop 2,000 (common)Top 5,000 (fairly common)
CEFR levelC1-
Part of speechadjective
Collocationscautious approach, cautious optimism, cautious demeanorhaven't been foolish, haven't been brave enough, haven't been careful enough
Antonymsreckless, careless, bold-
Common mistakesConfused with 'careful' and 'cautious'. 'Cautious' implies avoidance of risk., Using 'cautious' where 'hesitant' might fit better when discussing indecision.Confused with 'haven't been smart enough', Misused in formal contexts, Overused in negative scenarios
Usage notesUse 'cautious' when describing someone who thinks carefully before acting. It’s appropriate in both formal and informal contexts, but avoid it when speaking of spontaneous actions.Often used in casual conversations to imply self-awareness or an acknowledgment of past mistakes. Avoid in formal settings.

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Haven't been stupid enough

Frequently asked questions: Cautious vs Haven't been stupid enough

What's the difference between Cautious and Haven't been stupid enough?

Cautious: Careful to avoid danger or risks. Haven't been stupid enough: Not being foolish or silly

Which is more formal: Cautious and Haven't been stupid enough?

Cautious is the most formal of these.

Which is more common: Cautious and Haven't been stupid enough?

Cautious is the most common in everyday English.

Can you show an example of each?

Cautious: She was very cautious about investing her savings. Haven't been stupid enough: I haven't been stupid enough to invest in that scheme.

Can I use Cautious and Haven't been stupid enough interchangeably?

Not always. Cautious and Haven't been stupid enough 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.

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