Synonyms and Antonyms of authoritative
- this book is considered the most authoritative source on that subject
- after a couple of authoritative critics panned the movie, the other reviewers rushed to say how awful it was
cogent, controlling, dominating, masterful
dominant, predominant, regnant, sovereign (also sovran), supreme
- she's very authoritative for someone who doesn't actually outrank us
authoritarian, autocratic (also autocratical), bossy, despotic, dictatorial, domineering, imperious, masterful, overbearing, peremptory, tyrannical (also tyrannic), tyrannous
arrogant, assumptive, disdainful, fastuous, haughty, highfalutin (also hifalutin), high-and-mighty, high-hat, huffy, important, lofty, lordly, overweening, presuming, presumptuous, pretentious, proud, self-asserting, supercilious, superior, toplofty (also toploftical), uppish, uppity
commanding, controlling, dictating, regimental
arbitrary, high-handed, imperial
aggressive, assertive, self-assertive
conceited, narcissistic, pompous, vain