IPA: /ˈrʌfɪənli/
KK: /ˈrʌfɪənli/
In a way that is rough, violent, or lawless, similar to the behavior of a ruffian.
The gang acted ruffianly, causing chaos in the streets.
Ruffianly → It is formed from "ruffian" (from Middle French *ruffian*, meaning a scoundrel or a violent person) and "-ly" (meaning in a manner of). The word "ruffianly" describes behavior that is characteristic of a scoundrel or violent person.
Think of a 'ruffian' as someone who behaves in a 'scoundrel-like' way, and the '-ly' indicates the manner of that behavior.