ineffable

/ɪˈnɛf.ə.bəl/

//ɪˈnɛf.ə.bəl// adj

"ineffable" is a 9-letter English headword indexed on PlainSpell.

The verdict

“ineffable” is an uncommon English word, ranked #58,763 in English word frequency and used as an adjective.

#58,763
frequency rank, English
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Beyond expression in words; unspeakable.

Key facts for ineffable
PropertyValue
Headwordineffable
LanguageEnglish
Part of speechAdjective
IPA/ɪˈnɛf.ə.bəl/
Letters9
Frequency rank#58,763
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “ineffable” 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). ineffable 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 ineffable is 9 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ɪˈnɛf.ə.bəl/. Corpus data places it at rank #58,763 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.

Our edit-distance generator produced no likely misspellings for ineffable, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Middle French ineffable (modern French ineffable), from Latin ineffābilis, from in- (“not”) + effor (“utter”) + -bilis (“-able”). The correct English form is ineffable, spelled I-N-E-F-F-A-B-L-E.

Definition

  1. 1
    Beyond expression in words; unspeakable.
  2. 2
    Forbidden to be uttered; taboo.

Etymology

From Middle French ineffable (modern French ineffable), from Latin ineffābilis, from in- (“not”) + effor (“utter”) + -bilis (“-able”).

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 "ineffable"?
"ineffable" is spelled I-N-E-F-F-A-B-L-E. The IPA pronunciation is /ɪˈnɛf.ə.bəl/.
What does "ineffable" mean?
As an adjective, "ineffable" means: Beyond expression in words; unspeakable.
How do you pronounce "ineffable"?
The IPA (International Phonetic Alphabet) transcription for "ineffable" is /ɪˈnɛf.ə.bəl/. 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 "ineffable"?
From Middle French ineffable (modern French ineffable), from Latin ineffābilis, from in- (“not”) + effor (“utter”) + -bilis (“-able”). 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 “ineffable”

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

  • The one correct English spelling is I-N-E-F-F-A-B-L-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ɪˈnɛf.ə.bəl/ (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