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adjectival nouns or quasi-adjectives (keiyodoshi), noun (common) (futsuumeishi)
rare
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あの珍本をどうやって手に入れたのですか。
How did you come by those rare books?
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adjectival nouns or quasi-adjectives (keiyodoshi), noun (common) (futsuumeishi)
strange, odd, peculiar, curious