13
ideal(adjective, unimportant)
11
abstract(adjective, unimportant, real, theoretical, conceptual)
10
flexible(adjective, unimportant)
7
intangible(adjective, unimportant)
6
dream(noun, conception, nightmare, excitant, ideality)
6
metaphysical(adjective, physical, obvious, presence)
4
conceptual
4
immaterial(adjective, unimportant)
4
conjectural
4
ever-changing
4
feeling(noun, apathy, conception, excitant, ideality)
4
hypothetical
4
insubstantial
4
liquid
4
pliable(adjective, unimportant)
3
bending(verb, adjective, unimportant)
3
indeterminate
3
soft
3
vibe(noun, thing, conception, excitant, ideality)
2
image(noun, concept, original, conception, excitant)
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APASmart Define. (2016). concrete thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/concrete/thesaurus/antonyms
ChicagoSmart Define. 2016. "concrete thesaurus" https://smartdefine.org/concrete/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, concrete thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/concrete/thesaurus/antonyms>.
MLASmart Define. "concrete thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/concrete/thesaurus/antonyms>