fatuous

/ˈfæt.ju.əs/

//ˈfæt.ju.əs// adj

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

The verdict

“fatuous” is uncommon English (frequency #72,304 among 2,507 “F” headwords), classed as an adjective. The kind of spelling people second-guess.

#72,304
frequency rank, English
2,507
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Obnoxiously stupid; vacantly silly; content in one's foolishness.

Corpus desk

Index EN-fatuous · fatuous · English

fatuous · rank #72,304 · 0 variants · 0 confusables

  • FREQ-RARE #72,304
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH Felixstowe

Nearest frequency peer: Felixstowe (+2 rank slots)

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.

Long-tail ranks near “fatuous”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “fatuous” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for fatuous
PropertyValue
Headwordfatuous
LanguageEnglish
Part of speechAdjective
IPA/ˈfæt.ju.əs/
Letters7
Frequency rank#72,304
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “fatuous” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).fatuousfalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “Felixstowe” (#72,306), “Faraj” (#72,300), “festschrift” (#72,309). Among 2,507 “F” headwords, “fatuous” is #72,304. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

fatuous is uncommon English at frequency #72,304 among 2,507 “F” headwords, classed as anadjective, transcribed /ˈfæt.ju.əs/. Rarity is why readers land here mid-draft. Gloss: "Obnoxiously stupid; vacantly silly; content in one's foolishness.".

The misspelling generator found no plausible variants for fatuous, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From Latin fatuus (“foolish, silly, simple”). The correct English form is fatuous, spelled F-A-T-U-O-U-S.

Definition

  1. 1
    Obnoxiously stupid; vacantly silly; content in one's foolishness.

Recorded use

Wiktionary examples

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

  1. A fatuous love affair can easily result in a fatuous marriage. A couple who hardly know each other and, indeed, may not even really like each other, make a commitment that has little chance of being honoured.
  2. While much publicity is given to fatuous 'reversing Beeching' ideas, the reality is that the real investment is focused on expanding the road network - [...].

Etymology

From Latin fatuus (“foolish, silly, simple”).

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); 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 "fatuous"?
"fatuous" is spelled F-A-T-U-O-U-S. The IPA pronunciation is /ˈfæt.ju.əs/.
What does "fatuous" mean?
As an adjective, "fatuous" means: Obnoxiously stupid; vacantly silly; content in one's foolishness.
How do you pronounce "fatuous"?
The IPA (International Phonetic Alphabet) transcription for "fatuous" is /ˈfæt.ju.əs/. 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 "fatuous"?
From Latin fatuus (“foolish, silly, simple”). 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "fatuous", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list