by fiat

assertive categorical pragmatic reasoned

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

ambiguous amenable doubtful doubting dubious equivocal flexible fluctuating indecisive manageable not positive obedient questioning skeptical submissive uncertain vacillating