Added 9 October 2026 giddiness noun Categories: Describing WordsRare Words noun ! Definition from Wiktionary (CC BY-SA). More about giddiness at Wordnik → Where our words come from → The state of being giddy. A feeling of being overcome with excitement, especially in a silly or immature manner. Related Words: sillinesslightheadednessdizzinessvertigowhizzinessgigglinessditzinessgassinessgloatinessswimminggoutinessgossipiness Back to today's word