bilinmeyen [mat.]

listen to the pronunciation of bilinmeyen [mat.]
Türkçe - İngilizce
unknown quantity
A person or thing whose nature or value is a mystery

the Evening Post of this city to refer to him recently as the young Belgian painter, and to the general public he is an unknown quantity.

a factor in a given situation whose bearing and importance is not apparent; "I don't know what the new man will do; he's still an unknown quantity
bilinmeyen [mat.]