dogmatic

Synonyms: arbitrary arrogant assertive bigoted bullheaded categorical cocksure confident definite despotic determined dictative doctrinaire domineering downright egotistical emphatic fanatical fascistic formal high and mighty imperious intolerant magisterial narrowminded obdurate obstinate one-sided overbearing peremptory pigheaded prejudiced stiff-necked stubborn tenacious tyrannical unequivocal wrong-headed

Antonyms: amenable doubting flexible indecisive manageable obedient questioning skeptical submissive

Synonyms: a priori as a matter of course assertive authoritarian authoritative axiomatic by fiat by natural law by nature canonical categorical deducible deductive derivable doctrinaire doctrinal eternal excathedra formal imperative inevitable on faith oracular orthodox peremptory positive pragmatic prophetic reasoned systematic theoretical unchangeable unerring unqualified

Antonyms: ambiguous doubtful dubious equivocal fluctuating indecisive not positive uncertain vacillating