dizzy
adjective /ˈdɪzi/
  /ˈdɪzi/
 (comparative dizzier, superlative dizziest)
Idioms - feeling as if everything is turning around you and that you are not able to balance synonym giddy
- Climbing so high made me feel dizzy.
 - I suffer from dizzy spells (= short periods when I am dizzy).
 
Extra ExamplesTopics Illnessc1- He was all right, just a bit dizzy, that's all.
 - She felt almost dizzy with happiness.
 - Some of the fairground rides can make you quite dizzy.
 - Almost dizzy with relief, she smiled broadly.
 
 - making you feel dizzy; making you feel that a situation is changing very fast synonym giddy
- the dizzy descent from the summit
 - the dizzy pace of life in Hong Kong
 
 - (especially North American English, informal) silly or stupid synonym giddy
- a dizzy blonde
 
 
Word OriginOld English dysig ‘foolish’, of West Germanic origin; related to Low German dusig, dösig ‘giddy’ and Old High German tusic ‘foolish, weak’.
Idioms 
the dizzy heights (of something) 
- (informal) an important or impressive position
- She dreamed of reaching the dizzy heights of stardom.
 - They reached the dizzy heights of Number 11 in the charts.