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1. Lacking color: a colorless liquid.
2. Pale; pallid: a colorless face.
3. Lacking animation, variety, or distinction; dull. See Synonyms at dull.

col′or·less·ly adv.
col′or·less·ness n.


(ˈkʌl ər lɪs)

1. without color.
2. pallid; dull in color: a colorless complexion.
3. lacking vividness; drab; insipid; lackluster.
col′or•less•ly, adv.
col′or•less•ness, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.colorless - lacking in variety and interest; "a colorless and unimaginative person"; "a colorless description of the parade"
dull - lacking in liveliness or animation; "he was so dull at parties"; "a dull political campaign"; "a large dull impassive man"; "dull days with nothing to do"; "how dull and dreary the world is"; "fell back into one of her dull moods"
colourful, colorful - striking in variety and interest; "a colorful period of history"; "a colorful character"; "colorful language"
2.colorless - weak in color; not colorful
achromatic, neutral - having no hue; "neutral colors like black or white"
colorful, colourful - having striking color; "colorful autumn leaves"


3. Without definite or distinctive characteristics:


adj incoloro, sin color
References in classic literature ?
He was a little chap, with a colorless face and the whitest, blankest eyes I ever saw.
But it was especially the aspect of the three chief officers of the ship, the mates, which was most forcibly calculated to allay these colorless misgivings, and induce confidence and cheerfulness in every presentment of the voyage.
She was moved by a kind of commiseration for Madame Ratignolle,--a pity for that colorless existence which never uplifted its possessor beyond the region of blind contentment, in which no moment of anguish ever visited her soul, in which she would never have the taste of life's delirium.
Rowena was in the clouds, she walked on air; this was to be the greatest day, the most romantic episode in the colorless history of that dull country town.
Her blooming full-pulsed youth stood there in a moral imprisonment which made itself one with the chill, colorless, narrowed landscape, with the shrunken furniture, the never-read books, and the ghostly stag in a pale fantastic world that seemed to be vanishing from the daylight.
Yet a single glass of its water held up to the light is as colorless as an equal quantity of air.
She was pretty, though in a colorless fashion; pretty and capable.
She was absolutely colorless, and her strange brilliant eyes seemed to have lost all their fire.
Yield: Colorless crystals (78 %); MP: 211-212 AdegC; IR vmax (KBr) cm-1: 3450 (indolic N-H), 2910, 2820 (C-H), 1610-1415 (aromatic C=C) and 1125 (C-O); EI-MS m/z (rel.
Colorless Tsukuru Tazaki and His Years of Pilgrimage