being or having an unknown or unnamed source; "a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor" पर्याय: nameless, unidentified, unnamed,
not known before; "used many strange words"; "saw many strange faces in the crowd"; "don''t let anyone unknown into the house" पर्याय: strange,
not famous or acclaimed; "an obscure family"; "unsung heroes of the war" पर्याय: obscure, unsung,
not known to exist; "things obscurely felt surged up from unknown depths"
a variable whose values are solutions of an equation पर्याय: unknown quantity,