What is another word for unknown?

Synonyms for unknown

This thesaurus page is about all possible synonyms, equivalent, same meaning and similar words for the term unknown.

English Synonyms and Antonyms

  1. unknown

    That is mysterious in the true sense which is beyond human comprehension, as the decrees of God or the origin of life. That is mystic or mystical which has associated with it some hidden or recondite meaning, especially of a religious kind; as, the mystic Babylon of the Apocalypse. That is dark which we can not personally see through, especially if sadly perplexing; as, a dark providence. That is secret which is intentionally hidden. Compare DARK.

    See synonyms for CLEAR.

    abstruse, cabalistic, dark, enigmatical, hidden, incomprehensible, inexplicable, inscrutable, mysterious, mystic, mystical, obscure, occult, recondite, secret, transcendental, unfathomable, unfathomed

Complete Dictionary of Synonyms and Antonyms

  1. unknown

    mysterious, hidden, obscure, unrecognized

Princeton's WordNet

  1. unknown, unknown region, terra incognitanoun

    an unknown and unexplored region

    "they came like angels out the unknown"

    stranger, unknown quantity, terra incognita, unknown region, alien

    illustrious, familiar, celebrated, notable, better-known, known, proverbial, noted, best-known, far-famed, onymous, legendary, identified, suspected, famed, well-known, famous, glorious, renowned

  2. stranger, alien, unknownnoun

    anyone who does not belong in the environment in which they are found

    unknown region, extraterrestrial, stranger, terra incognita, unknown quantity, alien, noncitizen, outlander, extraterrestrial being, foreigner

    illustrious, far-famed, noted, renowned, glorious, identified, known, better-known, well-known, suspected, legendary, proverbial, celebrated, familiar, famed, notable, best-known, famous, onymous

  3. unknown, unknown quantityadjective

    a variable whose values are solutions of an equation

    stranger, unknown quantity, terra incognita, unknown region, alien

    known, famed, illustrious, suspected, best-known, proverbial, onymous, legendary, famous, far-famed, celebrated, well-known, glorious, familiar, better-known, noted, identified, renowned, notable

  4. unknownadjective

    not known

    "an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source"

    unidentified, strange, unnamed, unsung, obscure, nameless

    legendary, notable, identified, better-known, proverbial, onymous, best-known, familiar, celebrated, suspected, renowned, famous, known, noted, far-famed, famed, glorious, illustrious, well-known

  5. nameless, unidentified, unknown, unnamedadjective

    being or having an unknown or unnamed source

    "a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor"

    unidentified, strange, unnamed, unsung, obscure, nameless

    celebrated, proverbial, noted, onymous, identified, best-known, known, renowned, better-known, well-known, notable, familiar, illustrious, legendary, glorious, far-famed, famous, suspected, famed

  6. unknownadjective

    not known to exist

    "things obscurely felt surged up from unknown depths"

    unidentified, strange, unnamed, unsung, obscure, nameless

    noted, famous, famed, best-known, known, well-known, celebrated, identified, far-famed, notable, suspected, onymous, illustrious, glorious, proverbial, familiar, better-known, legendary, renowned

  7. obscure, unknown, unsungadjective

    not famous or acclaimed

    "an obscure family"; "unsung heroes of the war"

    unnoticeable, dark, hidden, obscure, unnamed, unvalued, strange, unidentified, apart(p), vague, isolated, unappreciated, nameless, unsung

    famed, illustrious, best-known, well-known, notable, proverbial, celebrated, legendary, noted, famous, suspected, better-known, renowned, onymous, identified, glorious, familiar, far-famed, known

  8. strange, unknownadjective

    not known before

    "used many strange words"; "saw many strange faces in the crowd"; "don't let anyone unknown into the house"

    unusual, unnamed, unidentified, strange, obscure, foreign, nameless, unsung

    noted, proverbial, best-known, glorious, better-known, notable, identified, well-known, famed, familiar, far-famed, legendary, celebrated, famous, suspected, renowned, illustrious, known, onymous

Matched Categories

Editors Contribution

  1. anonymous

    not known by name ,unidentified

    i received an anonymous gift.

    Submitted by Aya11115 on November 25, 2019  

Dictionary of English Synonymes

  1. unknownadjective

    unascertained, not known

  2. unknownadjective

    mysterious, mystic, hidden, dark, enigmatical

  3. unknownadjective

    without the knowledge of

  4. unknownadjective

    obscure, undistinguished, nameless, unnoted, unhonored, renownless, inglorious

Synonyms, Antonyms & Associated Words

  1. unknownadjective

    obscure, inglorious, unrenowned, nameless, undistinguished, unascertained, unexplored, unapprehended, anonymous

How to pronounce unknown?

How to say unknown in sign language?

Words popularity by usage frequency


How to use unknown in a sentence?

  1. Erick Carballo:

    It was unknown territory, going through the steps of opening up a business, where promotion is key.

  2. Golden Experience Requiem (Golden Wind Requiem):

    This is...Requiem...Da... What you're seeing is indeed the truth. You are seeing movements created by your abilities, but you will never arrive at the truth that is going to happen. None who stands before me shall ever get there, regardless of their abilities. This is, The Power of Golden Wind Requiem. This is unknown even to Giorno Giovanna, who controls me...

  3. Mehmet Murat ildan:

    Since the future is unknown, in every step forward we walk to the unknown!

  4. Diane Rwigara:

    There are many cases in this country in which people are just kidnapped off the street by men dressed in civilian clothes, blindfolded, put in a tinted-windows vehicle, and driven off to unknown places, those victims either completely disappear, or are later found dead somewhere.

  5. Stuart Seaton:

    The human brain is a most unusual instrument of elegant and as yet unknown capacity.

Translations for unknown

From our Multilingual Translation Dictionary

Get even more translations for unknown »


Find a translation for the unknown synonym in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)


Use the citation below to add these synonyms to your bibliography:


"unknown." Synonyms.com. STANDS4 LLC, 2022. Web. 28 Jun 2022. <https://www.synonyms.com/synonym/unknown>.

Discuss these unknown synonyms with the community:


    Are we missing a good synonym for unknown?

    Browse Synonyms.com

    Free, no signup required:

    Add to Chrome

    Get instant synonyms for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant synonyms for any word that hits you anywhere on the web!


    Are you a human thesaurus?

    Which of the following terms is not a synonym of "shopsoiled"?
    • A. hackneyed
    • B. well-worn
    • C. new
    • D. commonplace

    Nearby & related entries:

    Alternative searches for unknown: