greatish,a.|ˈgreɪtɪʃ| [f. great a. + -ish.] Somewhat great. 1866Carlyle Remin. (1881) II. 185, I now..see it had been, as she called it, ‘a great success’, and greatish of its kind.1870[Lady Verney]Lettice Lisle 41 ‘You do a greatish deal, Gabriel, up and down’ said the child.