simpering adjective 1noun 1forms 3 adjective1 •Affected, smug, and supercilious.Why, look at him—look at this simpering self-righteous mug! — 1892 noun1 •The act of one who simpers.Well, but Polly attended, as I said; and there were strange simperings, and bowing, and courtesying, between them; the honest gentleman seeming not to know how to let his mistress wait upon him[…] — 1740 formssimperings · more simpering · most simpering