4
experimental(adjective, secretive, subversive, dissident)
4
fertile(adjective, fundamental, novel, unique, innovative)
4
foreign(adjective, obscure, strange, new, usual)
4
great(adjective, outstanding, prominent, distinguished)
4
improper(adjective, wrong, severe, harsh, exceptional)
4
inconceivable(adjective, light, obscure, thin, strange)
4
incongruous(adjective, strange, usual, irregular, peculiar)
4
innovational(adjective, fresh, fundamental, novel, unique)
4
innovatory(adjective, fundamental, novel, unique, innovative)
4
isolated(adjective, separate, simple, exceptional, special)
4
marked(adjective, great, solid, extraordinary, superior)
4
memorable(adjective, great, superior, important, famous)
4
modern(adjective, strange, new, hot, natural)
4
newfangled(adjective, strange, new, hot, natural)
4
off-the-wall
4
one(adjective, separate, simple, extraordinary, outstanding)
4
outre(wild, strange, new, exceptional, special)
4
personal(adjective, separate, simple, extraordinary, superior)
4
preternatural(adjective, obscure, dark, extraordinary, strange)
4
productive(adjective, fundamental, novel, unique, innovative)
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APASmart Define. (2016). unusual thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unusual/thesaurus/synonyms
ChicagoSmart Define. 2016. "unusual thesaurus" https://smartdefine.org/unusual/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unusual thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unusual/thesaurus/synonyms>.
MLASmart Define. "unusual thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/unusual/thesaurus/synonyms>