recherché
adjective
[ rəˈʃɛːʃeɪ ]
• rare, exotic, or obscure.
• "a few linguistic terms are perhaps a bit recherché for the average readership"
Similar:
obscure,
rare,
esoteric,
abstruse,
arcane,
recondite,
little known,
exotic,
strange,
unusual,
unfamiliar,
out of the ordinary,
Origin:
French, literally ‘carefully sought out’, past participle of rechercher .