WordWeb Online

1. Not known
   "an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source"
    
2. Being or having a source that is not known or who's name is unknown
   "a poem by an unknown author";
   - nameless, unidentified, unnamed
    
3. Not known to exist
   "things obscurely felt surged up from unknown depths"
    
4. Not famous or acclaimed
   "an unknown family";
   - obscure, unsung
    
5. Not known before
   "don't let anyone unknown into the house";
   - strange

1. An unknown and unexplored region
   "they came like angels out of the unknown";
   - unknown region, terra incognita
    
2. Anyone who does not belong in the environment in which they are found
   - stranger, alien
    
3. A variable whose values are solutions of an equation
   - unknown quantity

Derived forms: unknowns

See also: anon., anonymous, chartless, inglorious, little-known, unacknowledged, unbeknown, unbeknownst, uncharted, undiagnosed, undiscovered, unexplored, unfamiliar, unheard-of, unidentified, unmapped, unsuspected

Type of: interloper, intruder, region, trespasser, variable

Antonym: known

Encyclopedia: Unknown