mistaken
/mɪˈsteɪkn̩/
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
Erroneous.
Adjective
Examples
A mistaken sense of loyalty.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Having an incorrect belief.
Adjective
Examples
I think you must be (very) much mistaken.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “mistaken” mean?
Erroneous.
Is “mistaken” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.