[f. STUNT v.1 + -ING2.] That stunts.

1

1902.  R. Bagot, Donna Diana, xx. 246. The atmosphere of ecclesiastical Rome is heavy—stagnant—stunting to all intellectual growth.

2

1907.  A. C. Benson, Altar Fire, 176. It is this ethical prudence which is always … pulling up the plant to see how it grows, which is the weakening and the stunting thing.

3