68 entries under unusual topic. ×

3
out of the question(expression, adjective, idiom, unreasonable)
3
unreasonable(adjective, incredible, impossibility)
2
extreme(adjective, special, immoral, shocking)
2
incogitable(adjective, extraordinary, strange, amazing)
2
uncustomary(excellent, special, brilliant, rare)
1
bizarre(extraordinary, exceptional, marvelous, special)
1
curious(extraordinary, exceptional, marvelous, special)
1
egregious(special, rare)
1
infrequent(excellent, special, brilliant, rare)
1
insupportable(adjective, incredible)
1
noteworthy(excellent, extraordinary, exceptional, special)
1
odd(excellent, extraordinary, exceptional, marvelous)
1
peculiar(adjective, excellent, extraordinary, exceptional)
1
scarce(light, excellent, thin, special)
1
special(excellent, extraordinary, exceptional, marvelous)
1
unheard of(light, thin, extraordinary, strange)
1
unprecedented(excellent, extraordinary, exceptional, marvelous)
1
weird(adjective, extraordinary, exceptional, marvelous)
0
aberrant(excellent, special, brilliant, rare)
0
abnormal(excellent, special, brilliant, rare)
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APASmart Define. (2015). unthinkable thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unthinkable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unthinkable thesaurus" https://smartdefine.org/unthinkable/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unthinkable thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unthinkable/thesaurus/synonyms>.
MLASmart Define. "unthinkable thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unthinkable/thesaurus/synonyms>