IPA: /ˈfɛstəli/
KK: /ˈfɛstəli/
In a way that relates to a festival or celebration, often joyful and lively.
The town was decorated festally for the annual carnival, with colorful banners and lights everywhere.
Festally → It is formed from "fest" (from Latin "festivus", meaning festive or related to a feast) and "-ally" (meaning in a manner of). The word "festally" means in a festive manner or relating to a feast.
Think of 'fest' as relating to a feast or celebration, and remember that 'festally' describes doing something in a festive way.