unknown
adjective
- 1
being or having an unknown or unnamed source
a poem by an unknown author
corporations responsible to nameless owners
- 2
not known before
used many strange words
saw many strange faces in the crowd
- 3
not famous or acclaimed
an obscure family
unsung heroes of the war
- 4
not known
an unknown amount
an unknown island
- 5
not known to exist
things obscurely felt surged up from unknown depths
noun
- 1
a variable whose values are solutions of an equation
- 2
an unknown and unexplored region
they came like angels out the unknown
- 3
anyone who does not belong in the environment in which they are found
Also useful for “unknown”:Scrabble— High-value letters — see what it scores