recherché
/rəˈʃeəʃeɪ/adjective
- rare, exotic, or obscure罕见的, 难得的; 珍贵的, 珍奇的; 不平常的, 异国风味的; 模糊的, 晦涩的：
a few linguistic terms are perhaps a bit recherché for the average readership.
有些语言学术语对普通读者而言可能有点晦涩难懂。
词源
French, literally 'carefully sought out', past participle of rechercher.