Unknown
WordNet
adjective
(1) Being or having an unknown or unnamed source
"A poem by an unknown author"
"Corporations responsible to nameless owners"
"An unnamed donor"
(2) Not known before
"Used many strange words"
"Saw many strange faces in the crowd"
"Don't let anyone unknown into the house"
(3) Not famous or acclaimed
"An obscure family"
"Unsung heroes of the war"
(4) Not known
"An unknown amount"
"An unknown island"
"An unknown writer"
"An unknown source"
(5) Not known to exist
"Things obscurely felt surged up from unsuspected depths in her"- Edith Wharton
noun
(6) A variable whose values are solutions of an equation
(7) An unknown and unexplored region
"They came like angels out the unknown"
(8) Anyone who does not belong in the environment in which they are found
WiktionaryText
Synonyms
- anonymous
- unfamiliar
- uncharted
- undiscovered
- unexplored
- unidentified
- unnamed
- unrecognized
Noun
- A variable (usually x, y or z) whose value is to be found.
- Any fact or place about which nothing is known (as in the phrase "into the unknown").