Flatter  v. 1 compliment unduly, esp. For gain or advantage. 2 (usu. Refl.; usu. Foll. By that) congratulate or delude (oneself etc.) (he flatters himself that he can sing). 3 (of colour, style, portrait, painter etc.) Enhance the appearance of (that blouse flatters you). 4 cause to feel honoured.  flatterer n. Flattering adj. Flatteringly adv. [french]