Dunning-Kruger effect
"dunning-kruger-effect" is a 19-letter English headword indexed on PlainSpell.
The verdict
“Dunning-Kruger effect” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 21
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A cognitive bias where an individual with limited knowledge or competence in a specific domain tends to greatly overestimate their own ability relative to objective criteria or the performance of o...
| Property | Value |
|---|---|
| Headword | Dunning-Kruger effect |
| Language | English |
| Part of speech | Noun |
| Letters | 21 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “Dunning-Kruger effect” sits in English frequency
Spelling & Dictionary Insight
The English entry for Dunning-Kruger effect is 21 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "A cognitive bias where an individual with limited knowledge or competence in a specific domain tends to greatly overestimate their own ability relative to objective criteria or the performance of o...".
Zero misspellings are on record for Dunning-Kruger effect in our index, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: Coined on everything2 in 2002 by user uucp, who in 2005 copied the same entry to Wikipedia under the title Dunning-Kruger syndrome, named for David Dunning and Justin Kruger of Cornell University, who studied the phenomenon. The correct English form is Dunning-Kruger effect, spelled D-U-N-N-I-N-G---K-R-U-G-E-R- -E-F-F-E-C-T.
Definition
- 1A cognitive bias where an individual with limited knowledge or competence in a specific domain tends to greatly overestimate their own ability relative to objective criteria or the performance of others.
Etymology
Coined on everything2 in 2002 by user uucp, who in 2005 copied the same entry to Wikipedia under the title Dunning-Kruger syndrome, named for David Dunning and Justin Kruger of Cornell University, who studied the phenomenon.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “Dunning-Kruger effect”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-U-N-N-I-N-G---K-R-U-G-E-R- -E-F-F-E-C-T - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.