lackluster

• POS: Adjective, Noun
• HYPHEN: lack=lus=ter

CIDE DICTIONARY

lackluster, n. 

 A lack of luster.  [1913 Webster]

lackluster, a. 

•  Wanting luster or brightness.  Shak.  [1913 Webster]
•  Lacking spirit, liveliness, or enthusiasm; dull.  [PJC]
•  Mediocre; as, a lackluster performance.  [PJC]

THESAURUS

lackluster

absence of color, achromatic, achromaticity, achromatism, achromic, anemic, ashen, ashy, betwixt and between, bled white, blind, bloodless, cadaverous, chloranemic, colorless, colorlessness, dead, deadened, deadly pale, deathly pale, dim, dimmed, dingy, discolored, drab, dull, dullness, etiolated, exsanguinated, exsanguine, exsanguineous, faded, faint, fair, fair to middling, fairish, fairishness, fallow, flat, ghastly, gray, haggard, hueless, huelessness, hypochromic, indifference, indifferent, insipid, leaden, lifeless, livid, lurid, lusterless, mat, mealy, mediocre, mediocreness, mediocrity, medium, middling, middlingness, moderate, moderateness, modest, modestness, modesty, muddy, muted, namby-pamby, neutral, of a kind, of a sort, of sorts, pale, pale as death, pale-faced, pallid, passable, passableness, pasty, prosaic, prosy, respectability, respectable, rusty, sallow, sickly, so-so, somber, tallow-faced, tarnished, tedious, tediousness, tolerable, tolerableness, toneless, tonelessness, uncolored, vapid, wan, washed-out, waxen, weak, whey-faced, white, wishy-washy

ROGET THESAURUS

lackluster

Dimness

N dimness, darkness, paleness, half light, demi-jour, partial shadow, partial eclipse, shadow of a shade, glimmer, gliming, nebulosity, cloud, eclipse, aurora, dusk, twilight, shades of evening, crepuscule, cockshut time, break of day, daybreak, dawn, moonlight, moonbeam, moonglade, moonshine, starlight, owl's light, candlelight, rushlight, firelight, farthing candle, dim, dull, lackluster, dingy, darkish, shorn of its beams, dark, faint, shadowed forth, glassy, cloudy, misty, blear, muggy, fuliginous, nebulous, nebular, obnubilated, overcast, crepuscular, muddy, lurid, leaden, dun, dirty, looming, pale, confused.

Achromatism

N achromatism, decoloration, discoloration, pallor, pallidness, pallidity, paleness, etiolation, neutral tint, monochrome, black and white, uncolored &c (color), colorless, achromatic, aplanatic, etiolate, etiolated, hueless, pale, pallid, palefaced, tallow-faced, faint, dull, cold, muddy, leaden, dun, wan, sallow, dead, dingy, ashy, ashen, ghastly, cadaverous, glassy, lackluster, discolored, light-colored, fair, blond, white, pale as death, pale as ashes, pale as a witch, pale as a ghost, pale as a corpse, white as a corpse.