Despite his lack of any actual authority his autocratic demeanour annoyed many of his colleagues.
Of or pertaining to autocracy or to an autocrat; absolute; holding independent and arbitrary powers of government
In recent times the British prime minister has become increasingly autocratic.
relating to or of the nature of or having characteristics of an autocracy; "an autocratic government"; "autocratic political rule
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"
offensively self-assured or given to exercising usually unwarranted power; "an autocratic person"; "autocratic behavior"; "a bossy way of ordering others around"; "a rather aggressive and dominating character"; "managed the employees in an aloofmagisterial way"; "a swaggering peremptory manner"
relating to or of the nature of or having characteristics of an autocracy; "an autocratic government"; "autocratic political rule"
An autocratic person or organization has complete power and makes decisions without asking anyone else's advice. The people have grown intolerant in recent weeks of the King's autocratic ways