stubborn yes untrainable no
I have had a siberian husky and he is now 3 yrs. old I got him as a pup. I trained him to do the basic commands sit. down, stay, come and the well known off. he was real stubborn Not all huskys are that bad but every dog is trainable you just have to work on it as a 24 hr. job. so enough you will start to see the change just remember to always praise him when he does the command even if you have to help him still praise him. I used to train dogs so try that and see if that works.
Ruthies mom