| Adj. | 1. | rare - not widely known; especially valued for its uncommonness; "a rare word"; "rare books"uncommon - not common or ordinarily encountered; unusually great in amount or remarkable in character or kind; "uncommon birds"; "frost and floods are uncommon during these months"; "doing an uncommon amount of business"; "an uncommon liking for money"; "he owed his greatest debt to his mother's uncommon character and ability" | |
| 2. | rare - recurring only at long intervals; "a rare appearance"; "total eclipses are rare events"infrequent - not frequent; not occurring regularly or at short intervals; "infrequent outbursts of temper" | |
| 3. | rare - not widely distributed; "rare herbs"; "rare patches of gree in the desert"scarce - deficient in quantity or number compared with the demand; "fresh vegetables were scarce during the drought" | |
| 4. | rare - marked by an uncommon quality; especially superlative or extreme of its kind; "what is so rare as a day in June"-J.R.Lowell; "a rare skill"; "an uncommon sense of humor"; "she was kind to an uncommon degree"extraordinary - beyond what is ordinary or usual; highly unusual or exceptional or remarkable; "extraordinary authority"; "an extraordinary achievement"; "her extraordinary beauty"; "enjoyed extraordinary popularity"; "an extraordinary capacity for work"; "an extraordinary session of the legislature" | |
| 5. | rare - having low density; "rare gasses"; "lightheaded from the rarefied mountain air"thin - relatively thin in consistency or low in density; not viscous; "air is thin at high altitudes"; "a thin soup"; "skimmed milk is much thinner than whole milk"; "thin oil" | |
| 6. | rare - (of meat) cooked a short time; still red inside; "rare roast beef"raw - not treated with heat to prepare it for eating | |