esoterica

IPA(Pronunciation)

plural plural-only

Things that are esoteric; things that are impractical or specialised.

Japanese Meaning

難解で一般には理解しにくい、専門的または秘伝的な知識・事柄 / 実用性に乏しく、特定の分野や業界に限られた、特殊な知識・情報

She spent her evenings poring over ancient esoterica, trying to unlock meanings that eluded modern scholars.

彼女は夜ごと古い秘教的な資料を読みふけり、現代の学者が解き明かせない意味を見つけ出そうとした。

Sense（1）

Things that are esoteric; things that are impractical or specialised.

Helder was also a visionary given to muddled, passionate harangues on immortality, astral projection and other esoterica.