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agnostic

American  
[ag-nos-tik] / ægˈnɒs tɪk /

noun

  1. a person who holds that the answers to the basic questions of existence, such as the nature of the ultimate cause and whether or not there is a supreme being, are unknown or unknowable.

    Synonyms:
    pagan, infidel, heretic, heathen, empiricism, secularism, skeptic, skeptic, doubter, unbeliever, nonbeliever, disbeliever
  2. a person who denies or doubts the possibility of ultimate knowledge in some area of study.

  3. a person who holds neither of two opposing positions on a topic.

    Socrates was an agnostic on the subject of immortality.


adjective

  1. of or relating to agnostics or their doctrines, attitudes, or beliefs.

  2. asserting the uncertainty of all claims to knowledge.

  3. not taking a stand on something, especially not holding either of two usually strongly opposed positions (often used in combination).

    He's known to take an agnostic view of technological progress.

    The governor's fuel-agnostic energy policies were highly controversial.

  4. (especially of digital technology) not limited or dedicated to a particular device, system, etc. (often used in combination).

    platform agnostic software.

agnostic British  
/ æɡˈnɒstɪk /

noun

  1. a person who holds that knowledge of a Supreme Being, ultimate cause, etc, is impossible Compare atheist theist

  2. a person who claims, with respect to any particular question, that the answer cannot be known with certainty

"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

adjective

  1. of or relating to agnostics

"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

Related Words

Agnostic, atheist, infidel, skeptic refer to persons not inclined toward religious belief or a particular form of religious belief. An agnostic is one who believes it impossible to know anything about God or about the creation of the universe, or who refrains from commitment to any religious doctrine because of a lack of knowledge about God or the creation of the universe. An atheist is one who does not believe in or denies the existence of a deity or of divine beings. Infidel means an unbeliever, especially a nonbeliever in Islam or Christianity, and is often disparaging and offensive, in contrast to atheist and agnostic, which are often used in self-identification. A skeptic doubts and is critical of all accepted doctrines and creeds; while a person may self-identify in this way, the term can also be applied by others.

Other Word Forms

  • agnostically adverb
  • agnosticism noun

Etymology

Origin of agnostic

Coined in 1869 by English biologist Thomas Henry Huxley (1825–95); from Greek ágnōst(os), variant of ágnōtos “not known, incapable of being known” ( a- “not, without” + gnōtós “known,” adjective derivative of gignṓskein “to know”) + -ic , after gnostic ; a- 6

Explanation

If someone believes they cannot know whether or not God exists, that person is an agnostic. Your grandmother might be a devout believer, while your mom is agnostic. In 1869, English biologist T.H. Huxley coined this noun referring to someone whose religious beliefs lie somewhere in between those of a theist and an atheist — that is, a believer and a disbeliever. Huxley combined the Greek prefix a-, meaning "not," with gnostos, "known." This word can be used as a noun or adjective, and it can also refer to uncertainty about questions other than the existence of God: "Some philosophers remain agnostic as to whether people have free will."

Keep Reading on Vocabulary.com

Vocabulary lists containing agnostic

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.

They are agnostic about the health of brands.

From Barron's • Apr. 9, 2026

The perceived similarity to Netflix’s “Nobody Wants This,” a rom-com pairing a rabbi with an agnostic podcaster, is probably intentional.

From Salon • Mar. 29, 2026

Shares of chip-equipment makers have been hot in recent months, with the companies seen as somewhat agnostic plays on the booming budgets being allocated to artificial-intelligence buildouts.

From MarketWatch • Mar. 28, 2026

I’ve noted elsewhere in these pages the succession of formerly atheist or agnostic intellectuals who in recent years have surprised their audiences by acknowledging Western societies’ ancient and continuing dependence on Christian concepts and values.

From The Wall Street Journal • Feb. 18, 2026

He was born Jewish, but became an agnostic when he was a teenager, partly because of all that had happened to him as a child.

From "Tuesdays with Morrie" by Mitch Albom