42
spectrum(noun, colour, color, tone, spectrum)
31
dream(noun, desire, fancy, idea, impression)
18
illusion(noun, desire, fancy, informal, idea)
15
fantasy(noun, desire, fancy, confusion, informal)
14
variegation(noun, arch, spectrum, iridescence)
12
iris(noun, colour, tone, spectrum)
11
mirage(noun, desire, fancy, confusion, deception)
10
aura(noun, energy, field, emanation)
10
iridescence(noun, colour, tone, spectrum)
10
color spectrum(noun, expression, colour, tone, arch)
10
gradation(noun, colour, tone, spectrum)
10
light(noun, colour, tone, spectrum)
9
nimbus(noun, aura, halo, aureole)
9
colour spectrum(expression, colour, tone, spectrum)
9
impression(noun, fancy, idea, deception, vision)
8
coloured arc(expression, colour, tone, spectrum)
8
spectrum of light(expression, colour, tone, spectrum)
7
kaleidoscopic(adjective, varied, miscellaneous, assorted, multicolored)
7
optical illusion(noun, expression, confusion, deception, impression)
5
chameleon(noun, terrain, reptile, lizard)
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APASmart Define. (2016). rainbow thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rainbow/thesaurus/synonyms
ChicagoSmart Define. 2016. "rainbow thesaurus" https://smartdefine.org/rainbow/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, rainbow thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rainbow/thesaurus/synonyms>.
MLASmart Define. "rainbow thesaurus" 25 February 2016. Web. 20 September 2026. <https://smartdefine.org/rainbow/thesaurus/synonyms>