stupefaction

noun

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

The verdict

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

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The state of extreme shock or astonishment.

Corpus desk

Index EN-stupefaction · stupefaction · English

stupefaction · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" 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 stupefaction
PropertyValue
Headwordstupefaction
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “stupefaction” in English

stupefactionsits 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

stupefaction 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 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.

Recorded use

Wiktionary example

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

  1. Suddenly roused from the state of stupefaction to which fear had reduced her, the female filled the air with shrieks. Disengaging herself from the officers, and rushing towards her husband, she clung with all her strength to his arm, imploring him, with frantic violence, not to let them kill her.

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.

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

Source: FrequencyWords open word-frequency list