Noun
unknown -
a variable whose values are solutions of an equation
unknown quantity
variable a quantity that can assume any of a set of values
unknown -
an unknown and unexplored region; "they came like angels out the unknown"
unknown region ,
terra incognita
unknown -
anyone who does not belong in the environment in which they are found
stranger ,
alien
acquaintance ,
friend personal knowledge or information about someone or something
interloper ,
intruder ,
trespasser someone who intrudes on the privacy or property of another without permission
Adjective
unknown -
not known; "an unknown amount" ; "an unknown island" ; "an unknown writer" ; "an unknown source"
known apprehended with certainty; "a known quantity" ; "the limits of the known world" ; "a musician known throughout the world" ; "a known criminal"
inglorious not bringing honor and glory; "some mute inglorious Milton here may rest"
unacknowledged not recognized or admitted
unfamiliar not known or well known; "a name unfamiliar to most" ; "be alert at night especially in unfamiliar surroundings"
chartless ,
uncharted ,
unmapped (of unknown regions) not yet surveyed or investigated; "uncharted seas"
little-known unknown to most people
unbeknown ,
unbeknownst (usually used with `to') occurring or existing without the knowledge of; "a crisis unbeknown to me" ; "she had been ill for months, unbeknownst to the family"
undiagnosed eluding diagnosis; "undiagnosed disease"
unexplored ,
undiscovered not yet discovered; "undiscovered islands"
unheard-of previously unknown; "a first novel by an unheard of writer" ; "developments on an unheard-of scale"
unknown -
not known to exist; "things obscurely felt surged up from unknown depths"
unknown -
not famous or acclaimed; "an obscure family" ; "unsung heroes of the war"
obscure ,
unsung
inglorious not bringing honor and glory; "some mute inglorious Milton here may rest"
unknown -
not known before; "used many strange words" ; "saw many strange faces in the crowd" ; "don't let anyone unknown into the house"
strange
unfamiliar not known or well known; "a name unfamiliar to most" ; "be alert at night especially in unfamiliar surroundings"
unknown -
being or having an unknown or unnamed source; "a poem by an unknown author" ; "corporations responsible to nameless owners" ; "an unnamed donor"
nameless ,
unidentified ,
unnamed
anon. ,
anonymous having no known name or identity or known source; "anonymous authors" ; "anonymous donors" ; "an anonymous gift"
