What is another word for not knowing?
Pronunciation: [nˌɒt nˈə͡ʊɪŋ] (IPA) 
There are several synonyms that can be used to convey the same meaning as "not knowing". These include terms such as ignorance, unawareness, inexperience, unfamiliarity, and cluelessness. Ignorance refers to a lack of knowledge or information about a particular subject matter, while unawareness implies a state of being uninformed or not realizing something. Inexperience and unfamiliarity are usually used to describe a lack of knowledge or understanding of a particular field or topic, whereas cluelessness refers to a complete absence of information or understanding of a situation. All these synonyms express the same idea of a failure to comprehend or understand something fully.
