vertiginous

Short definition from Wiktionary

Adjective

1. 1
   Having an aspect of great depth, drawing the eye to look downwards.
2. 2
   Pertaining to vertigo (in all its meanings).
3. 3
   Pertaining to vertigo (in all its meanings): Inducing a feeling of giddiness, vertigo, dizziness or of whirling.
4. 4
   Revolving; rotating; rotatory.