"unknown" | Definition and Related Words

Adjective

Not known (synset 301379820)
"an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source"
also:
- unacknowledged - not recognized or admitted
- unfamiliar - not known or well known
- inglorious - not bringing honor and glory
similar to:
- chartless, uncharted, unmapped - (of unknown regions) not yet surveyed or investigated
- little-known - unknown to most people
- unbeknown, unbeknownst - (usually used with `to') occurring or existing without the knowledge of
- undiagnosed - eluding diagnosis
- undiscovered, unexplored - not yet discovered
- unheard-of - previously unknown
- unidentified - not yet identified
Being or having an unknown or unnamed source (synset 300121594)
"a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor"

similar to: anon., anonymous - having no known name or identity or known source

same as: nameless, unidentified, unnamed
Not known to exist (synset 302379193)
"things obscurely felt surged up from unknown depths"

similar to: unsuspected - not suspected or believed likely
Not famous or acclaimed (synset 301126357)
"an obscure family"; "unsung heroes of the war"

similar to: inglorious - not bringing honor and glory

same as: obscure, unsung
Not known before (synset 300969942)
"used many strange words"; "saw many strange faces in the crowd"; "don't let anyone unknown into the house"

similar to: unfamiliar - not known or well known

same as: strange

Noun

An unknown and unexplored region (synset 108649671)
"they came like angels out the unknown"

is a type of: region - a large indefinite location on the surface of the Earth

same as: terra incognita, unknown region
Anyone who does not belong in the environment in which they are found (synset 110680441)
is a type of: interloper, intruder, trespasser - someone who intrudes on the privacy or property of another without permission

subtypes: foreigner, outsider - someone who is excluded from or is not a member of a group

same as: alien, stranger
A variable whose values are solutions of an equation (synset 107286353)
is a type of: variable - a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity

same as: unknown quantity