giddy vs vertiginous

giddy and vertiginous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
giddy	No	Yes	No	No
vertiginous	No	Yes	No	No

As adjectives, giddy and vertiginous are synonyms defined as:

giddy and vertiginous: having or causing a whirling sensation; liable to falling

Other synonyms of giddy include dizzy, woozy.

giddy (adjective)	vertiginous (adjective)
lacking seriousness; given to frivolity	having or causing a whirling sensation; liable to falling
having or causing a whirling sensation; liable to falling