O·pin'ion·a·tive adjective 1. Unduly attached to one's own opinions; opinionated. Milton. 2. Of the nature of an opinion; conjectured. [ Obsolete] 'Things both opinionative and practical.' Bunyan. -- O*pin'ion*a*tive*ly , adverb Found on http://www.encyclo.co.uk/webster/O/25