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Synonyms

ineffable

American  
[in-ef-uh-buhl] / ɪnˈɛf ə bəl /

adjective

  1. incapable of being expressed or described in words; inexpressible.

    ineffable joy.

  2. not to be spoken because of its sacredness; unutterable.

    the ineffable name of the deity.

    Synonyms:
    unspeakable

ineffable British  
/ ɪnˈɛfəbəl /

adjective

  1. too great or intense to be expressed in words; unutterable

  2. too sacred to be uttered

  3. indescribable; indefinable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • ineffability noun
  • ineffableness noun
  • ineffably adverb

Etymology

Origin of ineffable

First recorded in 1400–50; late Middle English word from Latin word ineffābilis. See in- 3, effable

Explanation

Anything ineffable is unspeakably beautiful, moving, or horrible. It’s beyond expression. If something is so powerful or emotional that you can't even describe it, it’s ineffable. Ineffable ideas and emotions are difficult to put into words. Parents might feel an ineffable sadness and pride when watching their youngest child graduate from high school. Ineffable can also be used to describe a name that is so sacred you’re not allowed to say it. This word comes from the adjective effable, which means “something that can lawfully be expressed in words,” and isn’t used much anymore.

Keep Reading on Vocabulary.com

Vocabulary lists containing ineffable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"We are grateful for her passion, her wit, her ineffable style, and all the summers she spent in the tent."

From BBC • Jan. 21, 2026

With Frankenstein, he worries he’ll jinx the monster by talking too much about him, snuffing out the ineffable thing that he says fueled his performance.

From The Wall Street Journal • Sep. 30, 2025

This trend is often blamed on an ineffable consumer preference, or Americans’ being fat, but that isn’t exactly true.

From Slate • Jun. 22, 2025

She wasn’t so much superstitious as obedient, devoted to making the ineffable routine and mysticism accessible even to the uninitiated.

From Los Angeles Times • Apr. 29, 2025

He sat in the middle of the seat, holding the repaired flower upright in his fist, his eyes serene and ineffable.

From "The Sound and the Fury" by William Faulkner