59 entries under unbelievable topic. ×
| dandy(adjective, good, great, informal, extraordinary) | |
| chimerical(adjective, fake, false, wild, fantastic) | |
| fancied(adjective, fantastic, extravagant, absurd, abstract) | |
| fictitious(adjective, excellent, fake, false, wonderful) | |
| extravagant(adjective, severe, harsh, false, wonderful) | |
| fictive(adjective, fake, false, fantastic, extravagant) | |
| invented(adjective, fake, false, fantastic, abstract) | |
| surprising(adjective, extraordinary, great, awful, unusual) | |
| ideal(adjective, fake, false, fantastic, extravagant) | |
| illusory(adjective, fake, false, fantastic, extravagant) | |
| imagined(adjective, fake, false, fantastic, extravagant) | |
| romantic(adjective, fake, false, fantastic, extravagant) | |
| preposterous(adjective, severe, harsh, false, exceptional) | |
| visionary(adjective, fake, false, wild, fantastic) | |
| fairy-tale(adjective, false, fantastic, extravagant, absurd) | |
| notional(adjective, fake, false, fantastic, extravagant) | |
| out of this world(expression, adjective, idiom, good, excellent) | |
| unlikely(adjective, awful, strange, superb, wonderful) | |
| wild(adjective, difficult, wonderful, marvelous, fantastic) | |
| absurd(adjective, wild, marvelous, fantastic, extravagant) |
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| APA | Smart Define. (2016). fabulous thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/fabulous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fabulous thesaurus" https://smartdefine.org/fabulous/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, fabulous thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/fabulous/thesaurus/synonyms>. |
| MLA | Smart Define. "fabulous thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/fabulous/thesaurus/synonyms> |