Antonyms for dull

all:

sharp, lively, bright.

boring, uninteresting:

pleasant, happy.

drab, lackluster in effect on senses:

distinct, visible, excited, hopeful, rough, brilliant, apparent, good, cheerful.

insensitive:

agitated, filled, full, satisfied, alert, energetic, spirited.

not sharp:

dishonest.

unintelligent:

keen, smart, exciting, eventful, witty, bright, lively, active, quick, luminous, light, serrated, cognizant, lustrous, sharp, knifelike, sensitive, pointed, vivacious, intelligent, clear, fast, interesting.

noun:

plangent, blaring, jagged, vociferous, sapient, rousing, sensible, spiny, showy, energizing, knowledgeable, harsh, prickly, educated, silver, wily, earsplitting, enlivening, zippy, satin, clamorous, scintillant, Overloud, foxy, bright as a new penny, squealing, scholarly, shrewd, glazed, touching, sheeny, dark, raucous, valid, roaring, shimmery, spikelike, surprising, mesmerizing, silklike, cunning, rich, painted, glimmering, skilled, resounding, informed, cloudless, hardworking, shellacked, spellbinding, Lacerating, blasting, Self-luminous, vivid, dyed, stained, Dinning, jabbing, flashy, tantalizing, spectacular, ringing, brazen, discordant, beguiling, reverberant, invigorating, slippery, Gemmy, gaudy, sunshiny, splashy, varnished, shimmering, moving, learned, percipient, sound, springy, sedulous, pure, saturated, spiked, deep, needlelike, spiky, garish, tinged, illuminated, tinted, literate, silvern, animating, strident, illumined, erudite, sunlit, resplendent, sparkling, grating, crashing, logical, thundering, thunderous, deafening, sonorous, clarion, scratching, lit, trained, provocative, booming, shrill, suspenseful, stentorian, resourceful, noisy, sane, sensational, obstreperous, vibrant, highbrow, cerebral, well-read, clangorous, schooled.

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