vertiginous
ver.tig.i.nous \(.)v*r-'tij-*-n*s\ aj [L vertiginosus, fr. vertigin-, vertigo] 1: characterized by or suffering from vertigo : DIZZY 2: GIDDY, INCONSTANT 3: causing or tending to cause dizziness 4: marked by turning : ROTARY {the ~ motion of the earth> - ver.tig.i.nous.ly av