← BackshareGuessgiggly/ˈɡɪɡli/adjectiveProne to giggling; laughing in a silly, nervous, or lighthearted way.The movie was so funny that the whole audience became giggly.The giggly toddler found everything amusing, even a falling leaf.She felt giggly after drinking too much caffeine.SynonymsgiddysillyAntonymsserious