peremptory Synonyms

autocratic decisive positive bossy dominating authoritative magisterial absolute high-and-mighty arbitrary lordly irrevocable irreversible irrefutable insistent inflexible inappealable imperious imperial hegemonical imperative high-handed huffish mandatory highhanded authoritarian tyrannical summary stringent overweening overbearing orgulous oracular oppressive opinionated obligatory masterful haughty firm final contemptuous conclusive compulsory commanding coercive certain categorical brusque binding abrupt