dunderhead

/ˈdʌn.də.hɛd/

//ˈdʌn.də.hɛd// noun

"dunderhead" is a 10-letter English headword indexed on PlainSpell.

The verdict

“dunderhead” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A stupid person; a dunce.

Corpus desk

Index EN-dunderhead · dunderhead · English

dunderhead · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for dunderhead
PropertyValue
Headworddunderhead
LanguageEnglish
Part of speechNoun
IPA/ˈdʌn.də.hɛd/
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “dunderhead” in English

dunderheadsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

dunderhead is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈdʌn.də.hɛd/. Rarity is why readers land here mid-draft. Gloss: "A stupid person; a dunce.".

dunderhead has no tracked misspelling variants, a sign its spelling follows regular English conventions. No confusable counterpart is on file for this word, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From dunder + head. The correct English form is dunderhead, spelled D-U-N-D-E-R-H-E-A-D.

Definition

  1. 1
    A stupid person; a dunce.

Recorded use

Wiktionary examples

These source excerpts show how dunderhead appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. You're the stupidest dunderhead I ever saw or ever heard of, so help me Moses!
  2. Poor old fellow's a dunderhead. That's where it is in a nutshell. Never could make a living. […] Nice old chap as ever lived. Only impractical, dreamy. Gentle as a sheep—and no more capable of running that big, expensive plant than a motherly old ewe.

Etymology

From dunder + head.

This word in other languages

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

How do you spell "dunderhead"?
"dunderhead" is spelled D-U-N-D-E-R-H-E-A-D. The IPA pronunciation is /ˈdʌn.də.hɛd/.
What does "dunderhead" mean?
As a noun, "dunderhead" means: A stupid person; a dunce.
How do you pronounce "dunderhead"?
The IPA (International Phonetic Alphabet) transcription for "dunderhead" is /ˈdʌn.də.hɛd/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "dunderhead"?
From dunder + head. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list