57 entries under fantastic topic. ×

23
hypothetical(adjective, obscure, extraordinary, superior, uncertain)
21
abstract(adjective, obscure, extraordinary, superior, wild)
15
ideal(adjective, fake, extraordinary, superior, false)
12
notional(adjective, fake, false, intellectual)
9
intellectual(adjective, obscure, extraordinary, whole)
9
supposititious(adjective, fake, false, unreal)
7
imaginary(adjective, fake, false, vague)
7
unreal(adjective, fake, wild, unreasonable)
4
fanciful(adjective, fake, false, intellectual)
3
imagined(adjective, fake, false, vague)
3
unsubstantial(adjective, abstract, imaginary, unreal)
3
visionary(adjective, fake, false, wild, unreasonable)
2
chimerical(adjective, fake, false, wild, unreasonable)
2
fictitious(adjective, fake, false, intellectual)
2
made-up(unreal, fictitious, invented, speculative)
2
primordial(adjective, obscure, extraordinary, superior, important)
2
supernatural(adjective, excellent, obscure, extraordinary, superior)
1
absolute(excellent, obscure, extraordinary, superior)
1
accomplished(excellent, obscure, extraordinary, superior)
1
beyond grasp(expression, excellent, obscure, extraordinary, superior)
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APASmart Define. (2015). theoretical thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/theoretical/thesaurus/synonyms
ChicagoSmart Define. 2015. "theoretical thesaurus" https://smartdefine.org/theoretical/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, theoretical thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/theoretical/thesaurus/synonyms>.
MLASmart Define. "theoretical thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/theoretical/thesaurus/synonyms>