whetEnglishOxford American Thesauruswhet verb 1 he whetted his knife on a stone: sharpen, hone, put an edge on, strop, grind, file; rare edge, acuminate. ▷antonyms blunt. 2 is that enough to whet your appetite?: stimulate, excite, arouse, rouse, kindle, trigger, spark, quicken, waken, stir, inspire, animate, fan, fuel, fire, activate, incite, titillate, tempt, galvanize, prompt, strengthen, intensify. ▷antonyms dull, spoil.