dith·er / ˈdi[voicedth]ər/ • v. [intr.] 1. be indecisive: he was dithering about the election date.2. [tr.] Comput. display or print (an image) without sharp edges so that there appear to be more colors in it than are really available: [as adj.] (dithered) dithered bit maps. • n. 1. inf. indecisive behavior: after months of dither they had still not agreed.2. [in sing.] a state of agitation: buses are jammed and dirty and everyone is in a dither over taxis.DERIVATIVES: dith·er·er n.dith·er·y adj.