Giddy means feeling lightheaded or dizzy, often from excitement or being in a new situation. You might feel giddy when you're on a rollercoaster or trying something adventurous for the first time.
When people say they feel giddy, it usually means they're experiencing some kind of thrill or surprise. It's not just about feeling nauseous, but more about having a light-headed sensation that can be overwhelming. For example, if someone wins a big prize on TV, they might look giddy with excitement as they hold their award up in the air. Or, imagine being at an amusement park and riding a spinning teacup ride - you'd probably feel a bit giddy too!
How common is "giddy"?
Word giddy is considered rare in modern English. It has a balanced usage among all categories: speech, fiction, newspapers and academic texts.
Definitions
adjective
(predicative only) Feeling a sense of spinning in the head, causing a perception of unsteadiness and being about to fall down; dizzy.
Example: The man became giddy upon standing up so fast.
(attributive) Causing or likely to cause dizziness or a feeling of unsteadiness.
Example: They climbed to a giddy height.
Moving around something or spinning rapidly.
Unable to concentrate or think seriously; easily excited; impulsive; also, lightheartedly silly; frivolous.
Joyfully elated; overcome with excitement or happiness.
Example: The boy was giddy when he opened his birthday presents.
Feeling great anger; furious, raging.
(British, dialectal, agriculture, veterinary medicine) Of an animal, chiefly a sheep: affected by gid (“a disease caused by parasitic infestation of the brain by tapeworm larvae”), which may result in the animal turning around aimlessly.
(obsolete, figuratively) Of a thing, especially a ship: unsteady, as if dizzy.