(giddier, giddiest)
1.
If you feel ~, you feel unsteady and think that you are about to fall over, usually because you are not well.
He felt ~ and light-headed.
= dizzy
ADJ
giddiness
A wave of giddiness swept over her.
N-UNCOUNT
2.
If you feel ~ with delight or excitement, you feel so happy or excited that you find it hard to think or act normally.
Anthony was ~ with self-satisfaction...
Being there gave me a ~ pleasure.
ADJ
giddiness
There’s almost a giddiness surrounding the talks in Houston.
N-UNCOUNT