一流の の訳語→ ace best good mighty quaint respectable top-notch
希薄な の訳語→ little serous tangential
高尚な の訳語→ dignified elevated
高度な の訳語→ difficult higher sophisticated technically
深遠な の訳語→ esoteric meaningful sexy
難解な の訳語→ abstruse complicated confusing enigmatic hermetic