opinionated

Synonyms: adamant arbitrary assertive biased bigoted bossy bullheaded cocksure cocky conceited dictatorial doctrinaire dogmatic hard-line high-handed inflexible intransigent locked in obdurate obstinate one-sided oracular overbearing pigheaded positive pragmatic pragmatical prejudiced self-assertive set in stone set-on singleminded stubborn tilted uncompromising unyielding weighted

Antonyms: compromising indifferent open-minded