nidderling adjective 1noun 1forms 3 adjective1 •(no longer used) Unmanly.He was starting to get frustrated now, me keeping him from the Long Orbit with this nidderling triviality. — 1992 noun1 •(no longer used) Someone who is weak and cowardly.As we began to climb the moor, Sir Thomas motioned me with his hand to ride abreast of him, and to make ready my weapons, which I was not loth to do, for I am no nidderling to be afraid of powder. — 1896 formsnidderlings · more nidderling · most nidderling