What is another word for unknown quantity?
Pronunciation: [ʌnnˈə͡ʊn kwˈɒntɪti] (IPA) 
The term "unknown quantity" refers to something or someone that is not familiar or not understood. There are several synonyms for this phrase that can be used depending on the context. Some of these synonyms include "mystery," "enigma," "puzzle," "uncertainty," "unknown factor," and "dark horse." These terms imply that the object or individual in question is mysterious, obscure, and unfamiliar. They may also suggest that the information available is incomplete or uncertain. Depending on the context, different synonyms may be more appropriate to convey the intended meaning. Overall, they all refer to something or someone that needs to be further investigated or understood.
