Some younger people, especially children, could sometimes say "uten vilje", and it would be understood, but it is not considered correct, and would sound somewhat childish. In 50 years it might have become acceptable, but not now. The last one is jyst incorrect. "Intet" would mean "nothing" and not "no".
I feel 'I intentionally didn't do it' has a different interpretation to 'I didn't do it intentionally'. The former implies you deliberately avoided performing an action (e.g. washing the car); the latter implies accidentally doing something (e.g. breaking a window on the car while washing it).