shēn​suì

deep

深邃 shēn​suì
deep adjective
physically deep, far-reaching, or far into the night

His deep, piercing eyes seem to be able to see through people's hearts.

abstruse adjective
profound, intellectually deep, or difficult to understand

These profound philosophies require time to slowly grasp.

Frequency

Movie subtitles
1.01 per million appears in 1% of films
Written text
3.62 per million

Sources

Definitions
CC-CEDICT