ajnata
ajñāta — without knowledge;
SB 1.13.28
ajñāta-tattvāya — to those who are unaware of the truth;
SB 4.12.51
ajñatā — the ignorance;
SB 10.14.27
ajñāta — unknown;
CC Adi 2.76
ajñāta — unknown;
CC Adi 2.78