67 entries under fantastic topic. ×

6
loony(noun, adjective, informal, wild, strange)
6
outre(adjective, unusual, wild, strange, new)
5
foolish(adjective, wild, strange, silly, crazy)
5
wild(adjective, unusual, strange, silly, foolish)
4
out-of-the-way(adjective, extraordinary, new, exceptional)
4
preposterous(adjective, wild, strange, silly, foolish)
4
preternatural(adjective, strange, new, exceptional)
4
silly(adjective, wild, strange, foolish, crazy)
3
dubious(adjective, unusual, strange, irregular)
3
idiotic(adjective, silly, foolish, absurd)
3
nonsensical(adjective, silly, foolish, ridiculous)
3
senseless(adjective, silly, foolish, absurd)
2
balmy(adjective, wild, strange, silly, foolish)
2
cockeyed(adjective, unusual, foolish, uneven)
2
inane(adjective, silly, foolish, absurd)
2
inappropriate(silly, foolish, unwise, impractical)
2
irresponsible(silly, foolish, unwise, impractical)
2
risible(funny, absurd, pitiful, pathetic)
1
beyond all reason(expression, idiom, silly, foolish)
1
camp(adjective, unusual, wild, strange, funny)
10 years ago|35k views|share |citing 
APASmart Define. (2016). eccentric thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/eccentric/thesaurus/synonyms
ChicagoSmart Define. 2016. "eccentric thesaurus" https://smartdefine.org/eccentric/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, eccentric thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/eccentric/thesaurus/synonyms>.
MLASmart Define. "eccentric thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/eccentric/thesaurus/synonyms>