Definition of opinionator in English:

opinionator

Pronunciation /əˈpɪnjəneɪtə/

noun

  • A person who holds or expresses an opinion; specifically a (professional) theorist. Compare "opinator", "opiniator".

Origin

Late 17th century; earliest use found in Theophilus Gale (1628–1679), ejected minister and theologian. From opinionate + -or.