high-and-mighty

  • (s) 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 aloof magisterial way
    • a swaggering peremptory manner
    autocratic, bossy, peremptory, magisterial, dominating,

Synonyms

autocratic bossy peremptory magisterial dominating

Words of close approximity