unknown

adj. unfamiliar, strange, new, anonymous, mysterious

n. someone or something which is not known; someone or something that is unfamiliar; mathematical factor which is not known

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Noun
1. an unknown and unexplored region; "they came like angels out the unknown"
(synonym) unknown region, terra incognita
(hypernym) region
2. anyone who does not belong in the environment in which they are found
(synonym) stranger, alien
(hypernym) intruder, interloper, trespasser
(hyponym) foreigner, outsider
3. a variable whose values are solutions of an equation
(synonym) unknown quantity
(hypernym) variable

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Adjective
1. not known; "an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source"
(antonym) known
(similar) chartless, uncharted, unmapped
(see-also) inglorious, dishonorable
2. being or having an unknown or unnamed source; "a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor"
(synonym) nameless, unidentified, unnamed
(similar) anonymous, anon.
3. not known to exist; "things obscurely felt surged up from unsuspected depths in her"- Edith Wharton
(similar) unsuspected
4. not famous or acclaimed; "an obscure family"; "unsung heroes of the war"
(synonym) obscure, unsung
(similar) inglorious, dishonorable
5. not known before; "used many strange words"; "saw many strange faces in the crowd"; "don't let anyone unknown into the house"
(synonym) strange
(similar) unfamiliar

příd.jm. neznámý; bez vědomí koho; neznámý; velká neznámá

n. neznámo; nepoznané; neznámý/neznámá

Przym. nieznany; niewiadomy

Rzecz. nieznane; nieznajomy, nieznajoma