- Such a breach can only mean that learning is cast back upon itself, loses humanity, and becomes academic; and that the author who despises or ignores erudition, and with it the sense of human continuity and permanence for which it ought to stand, tends to become opinionative and shallow. - "Personality in Literature", Rolfe Arnold Scott-James.
- He's conceited and opinionative and argues all the time, even when he knows perfectly well that he's talking through his hat, and he smokes too much and eats too much and drinks too much, and I don't like the colour of his hair. - "Right Ho, Jeeves", P. G. Wodehouse.
- I don't suppose, Gertrude, you've lived five years at Mr. Graham's without finding out what a cantankerous, opinionative, obstinate old hulk he is! - "The Lamplighter", Maria S. Cummins.