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  • unknowable
    unknowable
    adjective
    not knowable; incapable of being known or understood.
  • Unknowable
    Unknowable
    noun
    philosophy the ultimate reality that underlies all phenomena but cannot be known
Synonyms

unknowable

American  
[uhn-noh-uh-buhl] / ʌnˈnoʊ ə bəl /

adjective

  1. not knowable; incapable of being known or understood.


noun

  1. something that is unknowable.

  2. the Unknowable, the postulated reality lying behind all phenomena but not cognizable by any of the processes by which the mind cognizes phenomenal objects.

unknowable 1 British  
/ ʌnˈnəʊəbəl /

adjective

  1. incapable of being known or understood

    1. beyond human understanding

    2. ( as noun )

      the unknowable

"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

Unknowable 2 British  
/ ʌnˈnəʊəbəl /

noun

  1. philosophy the ultimate reality that underlies all phenomena but cannot be known

"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


Etymology

Origin of unknowable

Middle English word dating back to 1325–75; see origin at un- 1, knowable


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.

See Examples For:

Whether they noted these changes – or connected them to any distant event – is unknowable.

From Science Daily ● Sep. 22, 2026

As the chapters accumulate, the reader gains a sense of the Jeff Beck that the authors describe as part genius, part unknowable eccentric.

From The Wall Street Journal ● Jul. 30, 2026

Its chief ambition is endurance: it must survive transit, uncertain demand and an unknowable stretch between gates.

From Salon ● Jul. 30, 2026

Indeed, that was effectively unknowable because, as the NYPD’s chief of detectives told reporters, they had learned that the bomb could’ve been timed to go off anywhere in the 12 hours prior to actual detonation.

From Slate ● Jul. 7, 2026

The gathering would happen, to an unknowable outcome.

From "The Underground Railroad: A Novel" by Colson Whitehead

Unknowable and terrifying, the workings of the mind can feel like a supernatural force.

From Los Angeles Times ● Jan. 9, 2022

Unknowable today is whether E.U. policymakers will stick with their program or undercut the policy when prices start to rise, as they have in the past.

From Washington Post ● Jul. 18, 2021

Unknowable — so no need to judge too harshly.

From Washington Post ● Jan. 13, 2017

Hardoon's topic--tonight and every Thursday, to packed classes--is how to align oneself with "the Light," the never-ending mystical emanation of the Unknowable God, Ein Sof.

From Time Magazine Archive

We ought to think of Him as the Absolutely Unknowable.

From The Expositor's Bible: The Book of Genesis by Marcus Dods

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