unpainterlyadj.

1894 Saturday 20 Oct. 504/2 The technique may be rocky and unpainterly..; the fact remains, few pictures of our day tell their story with such overwhelming dramatic power.

1949 N. Frye Diary 15 Mar. (2001) 159 It isn't pictorialism that's the mark of an unpainterly poet; it's the transfer to poetry of the sense of vivid quick sketching.

1979 National Gallery Techn. Bull 2 45/1 Most of their pictures..are painted on very smoothly prepared wood panels and have an enamel-like ‘unpainterly’ surface.

2007 F. Chappell in T. Olson & K. H. Olson J. Still vi. 227 Albert Cuyp..produced subtle and searching canvases of scenes that an Italian or French artist would have found unpainterly, flat and monotonous and indistinguishable.