untaughtness

uncountable

The quality of not having been taught; lack of education.

Japanese Meaning

教えられていない状態、教育を受けていないこと

His untaughtness about social customs made him seem naive in polite society.

社会的習慣について教えられていないことが、彼を社交の場で世間知らずに見せていた。

Sense（1）

The quality of not having been taught; lack of education.