16
monochrome(adjective, insipidity, colorlessness, achromatism)
13
gray(adjective, monochrome, insipidity, colorlessness, achromatism)
11
faded(adjective, monochrome, insipidity, colorlessness, achromatism)
10
pale(adjective, monochrome, insipidity, colorlessness, achromatism)
9
grey(adjective, monochrome, insipidity, colorlessness, achromatism)
8
monochromatic(adjective, monochrome, insipidity, colorlessness, achromatism)
8
monochromic(adjective, monochrome, insipidity, colorlessness, achromatism)
8
colorless(adjective, monochrome, insipidity, colorlessness, achromatism)
7
dull(adjective, monochrome, insipidity, colorlessness, achromatism)
7
dulled(adjective, monochrome, insipidity, colorlessness, achromatism)
7
self-colored(adjective, colour, tone, monochromic)
7
pallid(adjective, monochrome, insipidity, colorlessness, achromatism)
7
pastel(noun, adjective, light, soft, pale)
6
faint(adjective, monochrome, insipidity, colorlessness, achromatism)
6
decolorized(adjective, monochrome, insipidity, colorlessness, achromatism)
5
achromatic(adjective, monochrome, insipidity, colorlessness, achromatism)
5
monotone(adjective, monochrome, insipidity, colorlessness, achromatism)
5
neutral(adjective, monochrome, insipidity, colorlessness, achromatism)
4
achromaticity(noun, insipidity, paleness, achromatism, colourlessness)
4
achromatism(noun, insipidity, paleness, colourlessness)
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APASmart Define. (2016). rainbow thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rainbow/thesaurus/antonyms
ChicagoSmart Define. 2016. "rainbow thesaurus" https://smartdefine.org/rainbow/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, rainbow thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rainbow/thesaurus/antonyms>.
MLASmart Define. "rainbow thesaurus" 25 February 2016. Web. 20 September 2026. <https://smartdefine.org/rainbow/thesaurus/antonyms>