dizzier , dizziest
If you feel dizzy, you feel that you are losing your balance and are about to fall.
Her head still hurt, and she felt slightly dizzy and disorientated.
她的头还在痛,感觉有些眩晕,分不清方向。
You can use dizzy to describe a woman who is careless and forgets things, but is easy to like.
She is famed for playing dizzy blondes.
她以扮演没头脑但招人喜爱的金发美女而闻名。
dizzy heights
If you say that someone has reached the dizzy heights of something, you are emphasizing that they have reached a very high level by achieving it.
I escalated to the dizzy heights of director's secretary.
我逐渐升到了主任秘书这样的要职。