1) ADJ-GRADED Dictatorial means controlled or used by a dictator.
He suspended the constitution and assumed dictatorial powers.2) ADJ-GRADED (disapproval) If you describe someone's behaviour as dictatorial, you do not like the fact that they tell people what to do in a forceful and unfair way.
If you are too strict with them, your children will see you as dictatorial.
...his dictatorial management style.Syn:domineering, overbearing
English dictionary. 2008.