240 entries under adjective topic. ×

2
inconsiderate(insignificant, unimportant, inconsequential, irrelevant)
2
indefinite(intellectual, abstract, insubstantial, imperceptible)
2
insignificance(noun, unsubstantial)
2
intellectual(rational, supernatural, abstract, mental)
2
lightweight(unimportant, trivial, minor, senseless)
2
little(mean, light, slight, lower)
2
non-essential
2
nonexistent(fake, false, real, imaginary)
2
null(slight, lower, value, negative)
2
numinous(abstract, spiritual, theoretical, abstruse)
2
occult(intellectual, supernatural, mental, spiritual)
2
outer
2
outside
2
paltry(mean, light, slight, lower)
2
picayune(mean, light, slight, lower)
2
piddling(mean, slight, small, unimportant)
2
pointless(obscure, insignificant, unimportant, trivial)
2
preternatural(intellectual, supernatural, abstract, mental)
2
separate
2
transmundane(intellectual, supernatural, mental, spiritual)
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APASmart Define. (2015). immaterial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/immaterial/thesaurus/synonyms
ChicagoSmart Define. 2015. "immaterial thesaurus" https://smartdefine.org/immaterial/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, immaterial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/immaterial/thesaurus/synonyms>.
MLASmart Define. "immaterial thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/immaterial/thesaurus/synonyms>