From Longman Dictionary of Contemporary Englishgiddygid‧dy /ˈɡɪdi/ adjective 1 BALANCEfeeling slightly sick and unable to balance, because everything seems to be moving SYN dizzy Greg stared down from the seventh floor and began to feel giddy.2 HAPPYfeeling silly, happy, and excited, or showing this feelinggiddy with Sheila felt giddy with excitement.3 → giddy heights4 old-fashionedSTUPID/NOT SENSIBLE silly and not interested in serious things Fiona’s very pretty but a bit giddy. —giddily adverb —giddiness noun [uncountable]
Examples from the Corpus
giddy• Drinking champagne always makes me giddy.• Just watching those kids spinning makes me feel giddy.• Actually it felt nice to be giddy.• She suddenly felt giddy and had to find somewhere to sit down.• But for many days he felt a curious discomfort, almost giddy at times, almost sad at other times.• She felt a surge of giddy courage.• I tell her I am tired and giddy from last night's sleeping pill.• a giddy girl• Then we broke into giddy laughter.• giddy optimism• She felt a giddy sensation of ground shifting under her feet.• Her heart was galloping so fast that she felt quite giddy with happiness.feel giddy• Lester lay in his blankets and watched the staggering display put on by the stars until he felt giddy.• I felt giddy and sorry for myself.• If only man could be made to ... She felt giddy as the full answer came, crowding into her mind.• She felt giddy with the first intake of smoke, but suddenly saw how to make a whole of the face.giddy with• The children are giddy with excitement.Origin giddy Old English gydig “mentally ill” 