87 entries under slight topic. ×

19
unsubstantial(adjective, form, body, light, weak)
16
insignificant(adjective, dull, mean, light, weak)
16
insubstantial(adjective, body, light, weak)
16
unimportant(adjective, adverb, mean, light)
15
intangible(adjective, form, light, weak)
14
trivial(adjective, mean, light, lower)
13
inconsequential(adjective, mean, lower, value)
12
irrelevant(adjective, adverb, mean, separate)
12
metaphysical(adjective, form, body, light, weak)
10
indifferent(adjective, lower, value, inferior)
9
trifling(adjective, mean, light, lower)
8
illusory(adjective, light, weak, thin)
8
imaginary(adjective, light, weak, gentle)
8
petty(adjective, mean, light, weak)
7
inconsiderable(adjective, mean, lower, value)
7
negligible(adjective, mean, light, lower)
6
aerial(adjective, form, light, weak)
6
minor(adjective, mean, light, lower)
6
nonessential(adjective, adverb, mean, lower)
5
beside the point(expression, adjective, idiom, adverb)
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APASmart Define. (2015). immaterial thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/immaterial/thesaurus/synonyms
ChicagoSmart Define. 2015. "immaterial thesaurus" https://smartdefine.org/immaterial/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, immaterial thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/immaterial/thesaurus/synonyms>.
MLASmart Define. "immaterial thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/immaterial/thesaurus/synonyms>