shēn suì
deep (valley or night)
abstruse
hidden in depth
yōu suì
profound and unfathomable
suì mì
deep
profound
abstruse and full (of thought)
suì yǔ
large house that is dark and labyrinthine
tiǎo suì
abstruse
deep and profound
suì hù
forbidding entrance to a large, quiet house