nilly adv. 1 whether one likes it or not, inevitably, necessarily, of necessity, perforce, whether or no, like it or not, nolens volens, bon gré, mal gré Having borrowed the money, you must, willy-nilly, repay it
adj. 2 necessary, unavoidable, inevitable, involuntary He joked about a willy-nilly choice, meaning one offering no alternatives