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English adjective: unknown

1. unknown not known

SamplesAn unknown amount.
An unknown island.
An unknown writer.
An unknown source.

Similarchartless, little-known, unbeknown, unbeknownst, uncharted, undiagnosed, undiscovered, unexplored, unheard-of, unidentified, unmapped

See alsoinglorious, unacknowledged, unfamiliar


2. unknown being or having an unknown or unnamed source

SamplesA poem by an unknown author.
Corporations responsible to nameless owners.
An unnamed donor.

Synonymsnameless, unidentified, unnamed

Similaranon., anonymous


3. unknown not known to exist

SamplesThings obscurely felt surged up from unknown depths.



4. unknown not famous or acclaimed

SamplesAn obscure family.
Unsung heroes of the war.

Synonymsobscure, unsung



5. unknown not known before

SamplesUsed many strange words.
Saw many strange faces in the crowd.
Don't let anyone unknown into the house.




English noun: unknown

1. unknown (location) an unknown and unexplored region

SamplesThey came like angels out the unknown.

Synonymsterra incognita, unknown region

Broader (hypernym)region

2. unknown (person) anyone who does not belong in the environment in which they are found

Synonymsalien, stranger

Broader (hypernym)interloper, intruder, trespasser

Narrower (hyponym)foreigner, outsider

Antonymsacquaintance, friend

3. unknown (communication) a variable whose values are solutions of an equation

Synonymsunknown quantity

Broader (hypernym)variable

Based on WordNet 3.0 copyright © Princeton University.
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