adjective
1.
disposed to exercise or flaunt dictatorial authority in a way to override any protestation
the royal favorite was pompous and masterful when dealing with subordinates
Synonyms: bossy, domineering, high-handed, imperative, imperial, imperious, magisterial, overbearing, peremptory
Related Word: absolute, arbitrary, authoritarian, authoritative, dictative, dictatorial, doctrinaire, dogmatic; autocratic, despotic, tyrannical; high-and-mighty, self-willed
Contrasted words: humble, modest, unpretentious; indecisive, irresolute; submissive, yielding; feeble, weak
2.
Synonyms: proficient , adept, crack, crackerjack, expert, master, masterly, skilled, skillful
Related Word: adroit, deft, dexterous; preeminent, superlative, supreme, transcendent