counterfactual

/ˌkaʊntɚˈfæktʃuəl/

//ˌkaʊntɚˈfæktʃuəl// adj

"counterfactual" is a 14-letter English headword indexed on PlainSpell.

The verdict

“counterfactual” is an uncommon English word, ranked #65,013 in English word frequency and used as an adjective.

#65,013
frequency rank, English
14
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Contrary to known or agreed facts; untrue.

Key facts for counterfactual
PropertyValue
Headwordcounterfactual
LanguageEnglish
Part of speechAdjective
IPA/ˌkaʊntɚˈfæktʃuəl/
Letters14
Frequency rank#65,013
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “counterfactual” 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). counterfactual 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 counterfactual is 14 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˌkaʊntɚˈfæktʃuəl/. Corpus data places it at rank #65,013 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

We couldn't generate a plausible misspelling set for counterfactual, which points to an orthography that plays by predictable English rules. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From counter- + factual. The correct English form is counterfactual, spelled C-O-U-N-T-E-R-F-A-C-T-U-A-L.

Definition

  1. 1
    Contrary to known or agreed facts; untrue.
  2. 2
    Of or in comparison to a hypothetical state of the world.

Etymology

From counter- + factual.

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 "counterfactual"?
"counterfactual" is spelled C-O-U-N-T-E-R-F-A-C-T-U-A-L. The IPA pronunciation is /ˌkaʊntɚˈfæktʃuəl/.
What does "counterfactual" mean?
As an adjective, "counterfactual" means: Contrary to known or agreed facts; untrue.
How do you pronounce "counterfactual"?
The IPA (International Phonetic Alphabet) transcription for "counterfactual" is /ˌkaʊntɚˈfæktʃuəl/. 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 "counterfactual"?
From counter- + factual. 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 “counterfactual”

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

  • The one correct English spelling is C-O-U-N-T-E-R-F-A-C-T-U-A-L - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌkaʊntɚˈfæktʃuəl/ (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