LUSTROUS Antonyms

• thickly covered with ingrained dirt or soot

• (of color) discolored by impurities; not bright and clear

• causing dejection

• a dull greyish to yellowish or light olive brown

• lacking in liveliness or charm or surprise

• lacking brightness or color; dull

• of a light brownish green color

• causing dejection

• lacking in liveliness or animation

• emitting or reflecting very little light

• not keenly felt

• not having a sharp edge or point

• being or made softer or less loud or clear

• so lacking in interest as to cause mental weariness

• (of color) very low in saturation; highly diluted

• slow to learn or understand; lacking intellectual acuity

• (of business) not active or brisk

• blunted in responsiveness or sensibility

• not clear and resonant; sounding as if striking with or against something relatively soft

• darkened with overcast

• make dull in appearance

• become dull or lusterless in appearance; lose shine or brightness

• deaden (a sound or noise), especially by wrapping

• make numb or insensitive

• make dull or blunt

• become less interesting or attractive

• make less lively or vigorous

• having lost freshness or brilliance of color

• reduced in strength

• lacking brilliance or vitality

• lacking luster or shine

• a mixture of sulfides that forms when sulfide metal ores are smelted

• the property of having little or no contrast; lacking highlights or gloss

• not reflecting light; not glossy

• change texture so as to become matted and felt-like

• (of liquids) clouded as with sediment

• dark or gloomy

• discoloration of metal surface caused by oxidation

• make dirty or spotty, as by exposure to air; also used metaphorically