Synonym: infrequent, peculiar, scarce, sparse, uncommon, unusual. Antonym: dense, ordinary. Similar words: literary, contrary, temporary, contemporary, to the contrary, on the contrary. Meaning: [rer /reə] 
adj. 1. not widely known; especially valued for its uncommonness 2. recurring only at long intervals 3. not widely distributed 4. marked by an uncommon quality; especially superlative or extreme of its kind 5. having low density 6. (of meat) cooked a short time; still red inside.
adj. 1. not widely known; especially valued for its uncommonness 2. recurring only at long intervals 3. not widely distributed 4. marked by an uncommon quality; especially superlative or extreme of its kind 5. having low density 6. (of meat) cooked a short time; still red inside. 
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151. The collector knew that he had latched onto a rare antique.
152. In course of sinking the well - shaft they came upon a deposit of a very rare mineral.
153. All four countries have adopted the declaration against hunting rare animals.
154. In the ancient world, it was probably rare to castrate a dog or cat.
155. It must be stressed that this disease is very rare.
156. Angela Black's biscuit company is a rare success story in these times of recession.
157. It is rare to find such an interesting group of people.
158. a rare occasion/opportunity/visit/treat, etc.
159. The actress has a personal magnetism that is rare in someone so young.
160. Arletty was that rare breed of actress - beautiful, sexy and funny.
161. Their first child was born with a rare heart condition.
162. It was rare for her to have an opportunity to discuss her dull, uneventful life.
163. Special conditions apply to the use of the library's rare books.
164. Zoos fulfil an important function in the protection of rare species.Sentencedict
165. Celibacy is perfectly acceptable, although rare.
166. Demand for the rare breed products is growing.
167. Perfect numbers like perfect men are very rare. Rene Descartes 
168. She is a fairly rare bird.
169. We missed out on some of the rare birds.
170. Lovelock was very rare breed in modern science.
171. Rod McCallum collapsed with a rare allergic reaction.
172. In certain rare circumstances, these vaccines could activate disease.
173. As the Gypsey Race meanders through the estate it encourages and supports much wildlife and some quite rare birds.
174. The execution of juvenile offenders is extremely rare and at least 72 countries set 18 as the minimum age for the death penalty.
175. This, however, must have been a rare occurrence; most bishops will have received royal approval as canonically required.
176. The rash application of strong antiseptic solutions to prevent or ward off infection is another rare cause of urethritis.
177. Obvious other exclusions include blindness and deafness as well as rare birth defects.
178. For our decade-conscious brains, an event that happens only once per aeon is so rare as to seem a major miracle.
179. Conservative Democrats are a very, very rare breed today in the Deep South.
180. He is that rare bird, the night-owl who likes talking without the prop of a strong drink in his hands.