Word parts happy + -ly Pronunciation (UK) IPA (key): /ˈha.pə.li/ (US) IPA (key): /ˈhæ.pə.li/ Audio (US)(file) Adverb Positive happily Comparative more happily Superlative most happily By a good chance. Synonym: luckily Happily, the situation today is very different. In a happy or cheerful manner. Sally walked back home happily as she got full marks for her test. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads