What is "unteachable"

Usage examples of "unteachable".

While climbing up he thought, as he had so often recently, how unpleasant this utterly lonely life was: to reach his empty rooms he had to climb these six floors almost in secret, there put on his dressing gown, again almost in secret, light his pipe, read a little of the French magazine to which he had been subscribing for years, at the same time sip at a homemade kirsch, and finally, after half an hour, go to bed, but not before having completely rearranged his bedclothes which the unteachable charwoman would insist on arranging in her own way.

While climbing up he thought, as he had so often recently, how unpleasant this utterly lonely life was: to reach his empty rooms he had to climb these six floors almost in secret, there put on his dressing gown, again almost in secret, light his pipe, read a little of the French magazine to which he had been subscribing for years, at the same time sip at a homemade kirsch, and finally, after half an hour, go to bed, but not before having completely rearranged his bedclothes which the unteachable charwoman would insist on arranging in her own way.