fathead

/ˈfæt.hɛd/

//ˈfæt.hɛd// noun

By · According to Wiktionary data (CC BY-SA) ·

"fathead" is a 7-letter English headword indexed on PlainSpell.

The verdict

“fathead” is an uncommon English word, ranked #68,209 in English word frequency and used as a noun.

#68,209
frequency rank, English
7
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An idiot; a fool.

Key facts for fathead
PropertyValue
Headwordfathead
LanguageEnglish
Part of speechNoun
IPA/ˈfæt.hɛd/
Letters7
Frequency rank#68,209
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “fathead” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). fathead lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for fathead is 7 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈfæt.hɛd/. Corpus data places it at rank #68,209 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

fathead doesn't appear in our generated misspelling index, typically a sign the spelling maps closely to how the word sounds. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From fat + head. The correct English form is fathead, spelled F-A-T-H-E-A-D.

Definition

  1. 1
    An idiot; a fool.
  2. 2
    A cyprinid fish of the Mississippi valley, Pimephales promelas, the black-headed minnow.
  3. 3
    A labroid food fish of California; the California sheephead. Semicossyphus pulcher.
  4. 4
    A blobfish, Psychrolutes microporos
  5. 5
    Any of several species of fish of the genus Cubiceps

Etymology

From fat + head.

Synonyms

dunceimbecileloutnincompoopidiot

Antonyms

genius

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "fathead"?
"fathead" is spelled F-A-T-H-E-A-D. The IPA pronunciation is /ˈfæt.hɛd/.
What does "fathead" mean?
As a noun, "fathead" means: An idiot; a fool.
How do you pronounce "fathead"?
The IPA (International Phonetic Alphabet) transcription for "fathead" is /ˈfæt.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 "fathead"?
From fat + 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.

Using “fathead”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is F-A-T-H-E-A-D - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈfæt.hɛd/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list