All authoritative synonyms

adj authoritative

• valid — sound; just; well-founded: a valid reason.
• official — a person appointed or elected to an office or charged with certain duties.
• definitive — Something that is definitive provides a firm conclusion that cannot be questioned.
• truthful — telling the truth, especially habitually: a truthful person.
• accurate — careful and exact
• scholarly — of, like, or befitting a scholar: scholarly habits.
• trustworthy — deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.
• dependable — If you say that someone or something is dependable, you approve of them because you feel that you can be sure that they will always act consistently or sensibly, or do what you need them to do.
• factual — of or relating to facts; concerning facts: factual accuracy.
• authentic — An authentic person, object, or emotion is genuine.
• reliable — that may be relied on or trusted; dependable in achievement, accuracy, honesty, etc.: reliable information.
• imposing — very impressive because of great size, stately appearance, dignity, elegance, etc.: Notre Dame, Rheims, and other imposing cathedrals of France.
• decisive — If a fact, action, or event is decisive, it makes it certain that there will be a particular result.
• commanding — If you are in a commanding position or situation, you are in a strong or powerful position or situation.
• confirmed — You use confirmed to describe someone who has a particular habit or belief that they are very unlikely to change.
• faithful — strict or thorough in the performance of duty: a faithful worker.
• learned — having much knowledge; scholarly; erudite: learned professors.
• legit — legitimate.
• righteous — characterized by uprightness or morality: a righteous observance of the law.
• sound — The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 miles (140 km) long; 3–30 miles (5–48 km) wide.
• verified — confirmed as to accuracy or truth by acceptable evidence, action, etc.
• veritable — being truly or very much so: a veritable triumph.
• attested — (of cattle, etc) certified to be free from a disease, esp from tuberculosis
• documented — a written or printed paper furnishing information or evidence, as a passport, deed, bill of sale, or bill of lading; a legal or official paper.
• proven — to establish the truth or genuineness of, as by evidence or argument: to prove one's claim.
• validated — to make valid; substantiate; confirm: Time validated our suspicions.
• assertive — Someone who is assertive states their needs and opinions clearly, so that people take notice.
• authoritarian — If you describe a person or an organization as authoritarian, you are critical of them controlling everything rather than letting people decide things for themselves.
• autocratic — An autocratic person or organization has complete power and makes decisions without asking anyone else's advice.
• confident — If you are confident about something, you are certain that it will happen in the way you want it to.
• dictatorial — Dictatorial means controlled or used by a dictator.
• doctrinaire — a person who tries to apply some doctrine or theory without sufficient regard for practical considerations; an impractical theorist.
• dogmatic — relating to or of the nature of a dogma or dogmas or any strong set of principles concerning faith, morals, etc., as those laid down by a church; doctrinal: We hear dogmatic arguments from both sides of the political spectrum.
• imperative — imperative language
• imperious — domineering in a haughty manner; dictatorial; overbearing: an imperious manner; an imperious person.
• masterly — like or befitting a master, as in skill or art; worthy of a master; very skillful: a masterly presentation of the budget.
• officious — objectionably aggressive in offering one's unrequested and unwanted services, help, or advice; meddlesome: an officious person.
• peremptory — leaving no opportunity for denial or refusal; imperative: a peremptory command.
• self-assured — self-confident.
• administrative — Administrative work involves organizing and supervising an organization or institution.
• approved — An approved method or course of action is officially accepted as appropriate in a particular situation.
• canonical — If something has canonical status, it is accepted as having all the qualities that a thing of its kind should have.
• imperial — of, like, or pertaining to an empire.
• lawful — allowed or permitted by law; not contrary to law: a lawful enterprise.
• legal — permitted by law; lawful: Such acts are not legal.
• legitimate — according to law; lawful: the property's legitimate owner.
• magisterial — of, relating to, or befitting a master; authoritative; weighty; of importance or consequence: a magisterial pronouncement by the director of the board.
• mandatory — authoritatively ordered; obligatory; compulsory: It is mandatory that all students take two years of math.
• ruling — a principle or regulation governing conduct, action, procedure, arrangement, etc.: the rules of chess.
• sanctioned — authoritative permission or approval, as for an action.