His unteachable ignorance on the subject was frustrating.
unteachable student
Frequency:
60
%
She was labeled as an unteachable student by her teachers.
unteachable behavior
Frequency:
50
%
Her unteachable behavior in class led to disciplinary actions.
unteachable attitude
Frequency:
45
%
His unteachable attitude towards learning hindered his progress.
Idiomatic Expressions for unteachable
Phrase: unteachable moment
Meaning: refers to a situation or opportunity where a person is resistant to learning or receiving advice
Usage: It was an unteachable moment when she refused to listen to feedback from her colleagues.