giddy

Universal Words adjective (giddier, giddiest) 1 [notusuallybeforenoun] feeling that everything is moving and that you are going to fall SYNDIZZY: When I looked down from the top floor, I felt giddy. 2 [notusuallybeforenoun] ~ (with sth) so happy and excited that you cannot behave normally: She was giddy with happiness. 3 [usuallybeforenoun] making you feel as if you were about to fall: The kids were pushing the roundabout at a giddy speed. * (figurative) the giddy heights of success 4 (old-fashioned) (of people) not serious SYNSILLY: Isabel's giddy young sister giddily adverb: She swayed giddily across the dance floor. * His senses were swimming giddily out of control. giddiness noun [U]: Symptoms include nausea and giddiness.