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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1. Many kinds of wild orchid are becoming rare.
2. A rare bird has just flown by.
3. That bird is very rare in this country.
4. She suffers from a rare disease of the brain.
5. The museum is full of rare and precious treasures.
6. In Los Angeles a pedestrian is a rare spectacle.
7. It is rare to find such loyalty these days.
8. Physical perfection in a human being is exceedingly rare.
9. She has a rare, incurable disease.
10. Would you like your steak rare, medium, or well-done?
11. He has a collection of rare insect specimens.
12. These flowers are very rare in this country.
13. Such a move is rare, but not unprecedented.
14. He suffers from a rare disorder of the liver.
14. Wish you can benefit from our online sentence dictionary and make progress every day!
15. It is a temple of rare architectural beauty.
16. She smiled with a rare flash of humour.
17. It is rare to find such genius nowadays.
18. Laughter was a rare occurrence in his classroom.
19. An eclipse of the moon is a rare phenomenon.
20. Coal is becoming a rare commodity.
21. This species of plant is becoming increasingly rare.
22. Readers are plentiful. Thinkers are rare.
23. We should perpetuate the rare species.
24. On the rare occasions when they met he hardly even dared speak to her.
25. It is rare for the responsibility for causing conflict to rest solely on one side.
26. It remained an exceptionally rare book until it was reprinted in 1918.
27. It was a rare honour to be made a fellow of the college.
28. They have replanted many areas with rare and unusual plants.
29. Some kinds of birds which were once a common sight are now becoming rare.
30. Wild flowers such as orchids and primroses are becoming rare.