ver·tig·i·nous (v
r-t
j
-n
s)
adj.
1. Turning about an axis; revolving or whirling.
2. Affected by vertigo; dizzy. See Synonyms at giddy.
3. Tending to produce vertigo: “my small mind contained in earthly human limits, not lost in vertiginous space and elements unknown” Diana Cooper.
4. Inclined to change quickly; unstable.