IPA: /ˈfʌstɪli/
KK: /ˈfʌstɪli/
In a way that is old-fashioned, stale, or musty, often referring to ideas or attitudes that are outdated.
The meeting was conducted fustily, with outdated ideas that no longer applied to modern times.
Fustily → It is formed from "fusty" (from Middle English *fusty*, meaning musty or stale) and the adverbial suffix "-ly" (meaning in a manner of). The word "fustily" means in a manner that is stale or musty, often referring to outdated or old-fashioned ideas.
Think of 'fusty' which means stale or old, and remember that 'fustily' describes doing something in a stale or outdated manner.