thickhead

noun

"thickhead" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
9
letters

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

Corpus desk

Index EN-thickhead · thickhead · English

thickhead · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "T" 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 thickhead
PropertyValue
Headwordthickhead
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “thickhead” in English

thickheadranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

thickhead is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for thickhead in our index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From thick + head. Compare West Frisian dikharsens (“blockhead”, literally “thick brain”). The correct English form is thickhead, spelled T-H-I-C-K-H-E-A-D.

Definition

  1. 1
    A stupid person.
  2. 2
    Any of several species of Australian songbirds of the genus Pachycephala.

Recorded use

Wiktionary example

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

  1. Near-synonyms: bonehead, numskull; see also Thesaurus:fool, Thesaurus:idiot

Etymology

From thick + head. Compare West Frisian dikharsens (“blockhead”, literally “thick brain”).

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 "thickhead"?
"thickhead" is spelled T-H-I-C-K-H-E-A-D.
What does "thickhead" mean?
As a noun, "thickhead" means: A stupid person.
What is the origin of the word "thickhead"?
From thick + head. Compare West Frisian dikharsens (“blockhead”, literally “thick brain”). 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