ppl. a. [f. FLINCH v.1 + -ING2.] That flinches. Hence Flinchingly adv.

1

1847.  in Craig.

2

1883.  Fenn, Middy & Ensign, xvii. 105. The monkey looked at him curiously, as it held out one long thin black hand, flinchingly, as if expecting to be teased.

3