giddiness

American  

[gid-ee-nis] / ˈgɪd i nɪs /

noun

1. unrestrained high spirits.

   In a moment of uncharacteristic giddiness, the groom spun his bride around in joyous circles.

2. dizziness or lightheadedness; vertigo.

   Besides general effects such as nausea, giddiness, or an inability to focus, the excessive vibration of industrial tools can also damage nerves and blood vessels.

3. frivolous lightheartedness; silliness or lack of seriousness.

   I'm not prone to escapism, giddiness, or saccharine sentimentality.

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Etymology

Origin of giddiness

giddy ( def. ) + -ness ( def. )