adjective
1.
Synonyms: official , ex cathedra, ex officio
2.
Synonyms: true 9, dependable, trustable, trustworthy
Related Word: attested, authenticated, circumstantiated, confirmed, proven, validated, verified; convincing, indisputable, irrefutable, sure, unrefutable; cathedral, cathedratic
Contrasted words: contestable, controversial, debatable, disputable, refutable; dubious, questionable, suspect, unreliable
3.
Synonyms: dictatorial , authoritarian, dictative, doctrinaire, dogmatic, magisterial
4.
Synonyms: orthodox 1, accepted, canonical, received, sanctioned, sound