Synonyms of 'in the dark'
▷ See dark
ignorantDictionary, unaware, oblivious
I managed to keep my parents in the dark.
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They don't ask questions for fear of appearing ignorant.
If you are oblivious to something or oblivious of it, you are not aware of it.
He appeared oblivious to his surroundings.
Thesaurus for in the dark from the Collins English Thesaurus
If you are in the dark about something, you do not know anything about it.