Unsportsmanlike

a., adv. (UN-¹ 7 c, 11 b.)

1754.  Connoisseur, No. 31, ¶ 12. It is unsportsman-like to admit dunghill cocks into the Pit.

1789.  Wolcot (P. Pindar), Subj. for Painters, Wks. 1816, II. 34. On which he … cry’d, ‘See, ho!’ Then jump’d (unsportsman like) upon his hare.

1803.  in Spirit Pub. Jrnls., VII. 298. We stayed till it was dark, that we might not be seen returning in such an unsportsmanlike manner.

1845.  Ford, Handbk. Spain, 107. They use nets, spears, night lines, and every unsportsmanlike abomination.

1873.  G. C. Davies, Mount. & Mere, ii. 8. It was all very well once in a way, but too unsportsmanlike to be repeated often.