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unknown

unknown

41 6.1
Something you do not know or cannot identify, for example a variable in math
  • noun
  • /ʌnˈnoʊn/
translation icon : lo desconocido
  • Because there are so many unknowns, it has no right answer.
  • fear of the unknown
  • knowns and unknowns
  • many unknowns

But there's this great big dark unknown never reported.

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Examples

  • What if the unknown was greater than we could imagine?

  • The unknown will become known, and we will protect you.

  • Do we dare enter the unknown in front of us?

  • The long tradition of exploring the unknown goes back as far as recorded history.

    Academic text (1995)
  • We are impatient of being on the way to something unknown, something new.

  • Which is that there's so much unknown pain and suffering ahead.

  • Paradoxically, knowledge on how to deal, accept, and move with the unknown is precious.

    Academic text (1992)
  • In every small community, the unknown is always most intriguing, and Haddan was no exception to this rule.

    Fiction book (2001)
  • The scientist dedicated her career to uncovering the mysteries of the unknown deep sea.

  • Many people are afraid of the unknown because it can bring unexpected challenges.

Synonyms

something
vsunknown
1.0

An unknown object or idea that is not named

focuses on lacking knowledge or identification rather than mere unspecifiedness
mystery
vsunknown
660 4.7

Something that is hard to understand or explain

refers mainly to lack of identification rather than to being hard to understand
enigma
vsunknown
33 8.1

A person or thing that is mysterious and hard to understand

means not identified or known rather than being mainly puzzling
terra incognita
vsunknown
1 9.9

A place or subject that people do not know yet

applies more broadly to any unidentified thing, not only places or subjects
whatsis
vsunknown
  • Informal
1 9.9

A thing whose name you cannot remember

applies more broadly to things not identified or understood, not only forgotten names
unknown quantity
vsunknown
1 7.1

A person or thing you do not yet know much about

is the general term for any unidentified item, not focusing on abilities

Antonyms

2 1.0

Familiar to many people and easy to identify

Idioms

1 7.3

To do something risky without knowing what will happen

Compounds

4 6.3

A soldier who died in war whose name cannot be found and who stands for all war dead

unknown variable
  • Specialized
1 4.6

A letter or sign in an equation that stands for a value you do not know

A person or thing you do not yet know much about

unknown quantity
  • Specialized
6.8

A number in an equation you do not know and must find

An area that no one has explored or seen before

How Known

famous person
50 1.0
known
3 3.7
unknown
41 6.1
unidentified
4.2

Surface Forms

unknown singular
unknowns plural

Morphology

unknown = unknown (transparent) = un + know + en

The noun is a zero-derived nominalization of the adjective 'unknown', so the form and meaning stay the same apart from part of speech.

Etymology

Unknown comes from un- meaning 'not' and know meaning 'to know', so in math an unknown is the value you do not yet know and must find.