神秘 (shén mì) means “mysterious; mystery”. It is an HSK 5 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
这个古堡充满了神秘感。
Zhège gǔbǎo chōngmǎn le shénmìgǎn.
This ancient castle is full of mystery.
Updated: 2026-05-27