4
insufficient(adjective, close, light, weak, slight)
4
little(adjective, close, light, poor, inadequate)
4
marked(adjective, great, solid, extraordinary, superior)
4
marvellous
4
meagre(adjective, frequency)
4
mouth-watering(adjective, moist, characteristic, quality, taste)
4
noble(adjective, sophisticated, stylish, graceful, well-dressed)
4
personal(adjective, separate, simple, superior, unusual)
4
prodigious(adjective, excellent, extraordinary, unusual, exceptional)
4
rarified
4
seldom met with(expression, adjective, idiom, inadequate, insufficient)
4
slender(close, light, slight, poor, short)
4
sole(adjective, separate, simple, extraordinary, superior)
4
splendid(adjective, good, cool, great, pleasant)
4
subtile(adjective, light, fine, thin, delicate)
4
sui generis(expression, adjective, idiom, exceptional, exclusive)
4
superb(adjective, excellent, precious)
4
supernatural(adjective, obscure, dark, mysterious, paranormal)
4
tight(close, light, poor, inadequate, revealing)
4
undercooked(adjective, fresh, red, pink, uncooked)
10 years ago|34k views|share |citing 
APASmart Define. (2016). rare thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rare/thesaurus/synonyms
ChicagoSmart Define. 2016. "rare thesaurus" https://smartdefine.org/rare/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, rare thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rare/thesaurus/synonyms>.
MLASmart Define. "rare thesaurus" 14 March 2016. Web. 26 September 2026. <https://smartdefine.org/rare/thesaurus/synonyms>