Hidden vs Impossible to trace

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

Hidden

Top 2,000 (common)B2adjective

Impossible to trace

Beyond 10,000 (less common)
Most common: Hidden
 HiddenImpossible to trace
Pronunciation🇬🇧 /["/ˈhɪdn/"]/🇺🇸 /["/ˈhɪdn/"]/🇬🇧 //ɪmˈpɒsɪbəl tə treɪs//🇺🇸 //ɪmˈpɑːsəbl tə treɪs//
MeaningNot seen or noticed.Can't be found or followed.
ExampleHidden dangers lurk in the ocean depths.Digital footprints can be impossible to trace in a thorough investigation.
RegisterNeutralNeutral
How commonTop 2,000 (common)Beyond 10,000 (less common)
CEFR levelB2-
Part of speechadjective
Collocationshidden treasure, hidden message, hidden camera, hidden talent, hidden dangerevidence impossible to trace, origins impossible to trace, clues impossible to trace
Antonymsvisible, seen, exposed-
Common mistakesConfused with 'hid' instead of 'hidden' as an adjective., Using 'hidden' when speaking about something that is just misplaced instead of genuinely concealed., Using 'hidden' in contexts where 'secret' might be more appropriate.Omitting 'to' in 'impossible to trace' and saying 'impossible trace'., Using 'impossible for trace' instead of 'impossible to trace'.
Usage notesUsed to describe something that is not visible or detected. Common in both written and spoken contexts. Avoid using it for physical objects that are simply out of sight.Use in contexts discussing things that cannot be tracked or followed, such as evidence or past actions. Avoid in very formal writing.

See it in real clips

Hidden
Impossible to trace

Frequently asked questions: Hidden vs Impossible to trace

What's the difference between Hidden and Impossible to trace?

Hidden: Not seen or noticed. Impossible to trace: Can't be found or followed.

Which is more common: Hidden and Impossible to trace?

Hidden is the most common in everyday English.

Can you show an example of each?

Hidden: Hidden dangers lurk in the ocean depths. Impossible to trace: Digital footprints can be impossible to trace in a thorough investigation.

Can I use Hidden and Impossible to trace interchangeably?

Not always. Hidden and Impossible to trace 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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