vertiginous vs giddy

vertiginous and giddy both are adjectives.

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

As adjectives, vertiginous and giddy are synonyms defined as:

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

Other synonyms of vertiginous include dizzy, woozy.

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