stupefaction

noun

"stupefaction" is a 12-letter English headword indexed on PlainSpell.

The verdict

“stupefaction” 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
12
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The state of extreme shock or astonishment.

Key facts for stupefaction
PropertyValue
Headwordstupefaction
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “stupefaction” sits in English frequency

stupefaction falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Spelling & Dictionary Insight

The English entry for stupefaction is 12 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. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Zero misspellings are on record for stupefaction in our index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Middle French stupéfaction, from Latin stupefaciō (“strike dumb, stun with amazement, stupefy”), from stupeō (“I am stunned, speechless”) (English stupid, stupor) + faciō (“do, make”). The correct English form is stupefaction, spelled S-T-U-P-E-F-A-C-T-I-O-N.

Definition

  1. 1
    The state of extreme shock or astonishment.
  2. 2
    A state of insensibility; stupor.

Etymology

From Middle French stupéfaction, from Latin stupefaciō (“strike dumb, stun with amazement, stupefy”), from stupeō (“I am stunned, speechless”) (English stupid, stupor) + faciō (“do, make”).

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 "stupefaction"?
"stupefaction" is spelled S-T-U-P-E-F-A-C-T-I-O-N.
What does "stupefaction" mean?
As a noun, "stupefaction" means: The state of extreme shock or astonishment.
What is the origin of the word "stupefaction"?
From Middle French stupéfaction, from Latin stupefaciō (“strike dumb, stun with amazement, stupefy”), from stupeō (“I am stunned, speechless”) (English stupid, stupor) + faciō (“do, make”). 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 “stupefaction”

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

  • The one correct English spelling is S-T-U-P-E-F-A-C-T-I-O-N - 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.

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

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