unknown
名词 unknown:
an unknown and unexplored region
同义词:unknown region, terra incognita
anyone who does not belong in the environment in which they are found
a variable whose values are solutions of an equation
同义词:unknown quantity
形容词 unknown:
not known
being or having an unknown or unnamed source
同义词:nameless, unidentified, unnamed
not known to exist- Edith Wharton
not famous or acclaimed
not known before
同义词:strange