self-opinionated

/sˈɛlfəpˈɪniənˌeɪtɪd/

/sˈɛlfəpˈɪniənˌeɪɾᵻd/

self-opinionated

a cadenced trot executed by the horse in one spot

being of an opinion that showcases high regards for oneself, especially in an arrogant manner