322 entries under adjective topic. ×

4
difficult(hard, obscure, tricky, complicated)
4
empty(verb, leave, absent)
4
general(vague, intellectual, logical, imaginary)
4
incorporeal(fantastic, spiritual, insubstantial, theoretical)
4
nonobjective
4
recondite(obscure, intellectual, theoretical, abstruse)
4
unapplied
3
bodiless(theoretical, immaterial, abstruse, philosophical)
3
esoteric(hard, obscure, delicate, complex)
3
ethereal(fantastic, spiritual, insubstantial, imperceptible)
3
fictitious(fantastic, pretend, intellectual, unreal)
3
gone
3
idealistic(perfect, wild, unreasonable, useless)
3
immaterial(rational, intellectual, supernatural, spiritual)
3
impersonal(calm, cold, indifferent, detached)
3
mental(rational, intellectual, unreal, cerebral)
3
neutral(calm, dull, cool, flat)
3
quixotic(perfect, wild, unreasonable, useless)
3
rational(moral, logical, theoretical, cerebral)
3
spiritual(great, rational, fantastic, beautiful)
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APASmart Define. (2015). abstract thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/abstract/thesaurus/synonyms
ChicagoSmart Define. 2015. "abstract thesaurus" https://smartdefine.org/abstract/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, abstract thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/abstract/thesaurus/synonyms>.
MLASmart Define. "abstract thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/abstract/thesaurus/synonyms>