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unknown

unknown

520 2.3
Not known or named, often with no name given
  • adjective
  • /ʌnˈnoʊn/
: desconocido
  • What is known as child labor today is unknown in traditional societies.
  • remain unknown
  • previously unknown
  • largely unknown

She was like an unknown actress at the time.

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Examples

  • The significance of this arrangement is still unknown, but it is notable.

    Academic text (2011)
  • This is an unknown virus, it's a new one.

  • And for some unknown reason, they asked me to chair it.

  • The cause of MS is unknown, but genetic and environmental factors are thought to play a part.

    Academic text (2011)
  • Unknown vehicle arriving at the gate.

  • There's an unknown person joining the text conversation.

  • She was like an unknown actress at the time.

  • Issues that were somehow unknown and easily addressed during the 60s have become a fundamental problem today.

    Academic text (2011)
  • He flees New York, his location unknown.

  • The author remains relatively unknown to the general public, despite their critical acclaim.

Synonyms

unidentified
vsunknown
∞ 4.2

Not known or named

is broader, also including lack of fame or general unfamiliarity
anonymous
vsunknown
456 4.5

Has no known public name or source

is broader, including people not publicly identified rather than only kept secret
unfamiliar
vsunknown
102 4.4

Not known or seen before

is broader and covers lack of recognition in general, not only to someone
obscure
vsunknown
86 7.0

Not well known or famous

is broader, meaning completely not known, not just not famous or hard to access
unnamed
vsunknown
58 4.4

Not having a name mentioned or known

is wider, covering not being recognized or identified beyond just naming
little-known
vsunknown
49 7.3

Few people know about it

is broader, also covering complete lack of recognition, naming, or identity
nameless
vsunknown
46 4.4

A person or thing with no known name

is about overall lack of recognition or fame, not only missing a name
undiscovered
vsunknown
25 4.0

Not yet found or known by people

is broader, also covering things that remain unrecognized even when found or seen
unexplored
vsunknown
20 4.9

Not yet found or studied

is more general, covering lack of fame, recognition, or clear identification
unidentifiable
vsunknown
8 6.1

You cannot tell what something or someone is

is about general absence of recognition rather than permanent impossibility
unrecognized
vsunknown
3 4.2

Not known or noticed by other people

is more general and covers not being famous or widely known
underseen
vsunknown
1 8.3

Seen by only a few people

is about being entirely not known or without identity, not only lacking viewers

Antonyms

∞ 1.0

Familiar to many people and easy to identify

∞ 1.0

Many people know them for something good or important

774 1.0

Well known because you have seen or experienced it before

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

A person or thing you do not yet know much about

unknown variable
  • Specialized
2 4.6

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

An area that no one has explored or seen before

unknown quantity
  • Specialized
1 6.8

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

How Known

famous
∞ 1.0
known
∞ 1.0
familiar
774 1.0
unfamiliar
102 4.4
unknown
520 2.3
obscure
86 7.0

Surface Forms

unknown positive

Morphology

unknown = known (transparent) = un + known

Standard adjectival formation by prefixing 'un-' to 'known', giving the direct opposite meaning.

Etymology

Unknown comes from un- meaning 'not' and know meaning 'to know'. So an unknown person or thing is someone or something people do not know, or someone who is not famous.