dictatorial

dic·ta·to·ri·al  (dkt-tôr-l, -tr-)

adj.

1. Tending to dictate; domineering.

2. Of, relating to, or characteristic of a dictator or dictatorship; autocratic.

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dicta·tori·al·ly adv.

Synonyms: dictatorial, authoritarian, dogmatic, doctrinaire, imperious, overbearing
These adjectives mean asserting or tending to assert one's authority or to impose one's will on others. Dictatorial stresses the highhanded, peremptory manner characteristic of a dictator: ordered the staff about in her usual dictatorial manner.
Authoritarian implies the expectation of unquestioning obedience: the timid child of authoritarian parents.
Dogmatic suggests the imposing of one's will or opinion as though these were beyond challenge: "When people are least sure, they are often most dogmatic" (John Kenneth Galbraith).
Doctrinaire implies the imposition of one's theories, beliefs, or doctrines: "They didn't know the facts . . . and I don't think it would've mattered in the slightest if they had. Very doctrinaire" (George V. Higgins).
Imperious suggests the arrogant manner of one accustomed to commanding: dismissed my opinion with an imperious gesture.
Overbearing implies a tendency to be oppressively or rudely domineering: an overbearing customer demanding to see the manager.

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dictatorial

Adjective

1. of or pertaining to a dictator

2. tyrannical; overbearing

dictatorially adv

Thesaurus

Adj.	1.	dictatorial - of or characteristic of a dictator; "dictatorial powers"
	2.	dictatorial - expecting unquestioning obedience; "the timid child of authoritarian parents"; "insufferably overbearing behavior toward the waiter" overbearing, authoritarian domineering - tending to domineer
	3.	dictatorial - characteristic of an absolute ruler or absolute rule; having absolute sovereignty; "an authoritarian regime"; "autocratic government"; "despotic rulers"; "a dictatorial rule that lasted for the duration of the war"; "a tyrannical government" authoritarian, tyrannic, tyrannical, autocratic, despotic undemocratic - not in agreement with or according to democratic doctrine or practice or ideals; "the union broke with its past undemocratic procedures"

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dictatorial

adjective 1. absolute, unlimited, totalitarian, autocratic, unrestricted, tyrannical, despotic << OPPOSITE democratic

adjective 2. domineering, authoritarian, oppressive, bossy (informal) imperious, overbearing, magisterial, iron-handed, dogmatical << OPPOSITE servile