IPA: /ˈræbɪdli/
KK: /ˈræbɪdli/
In a way that shows extreme enthusiasm or anger, often to an irrational degree.
The fans cheered rabidly for their team, showing no signs of restraint.
Rabidly → It is formed from "rabidus" (from Latin, meaning raging or mad) and the suffix "-ly" (meaning in a manner). The word "rabidly" means in a manner that is furious or mad, often used to describe extreme behavior or attitudes.
Think of someone acting in a 'mad' or 'raging' way ('rabidus') — that's why rabidly means behaving in a furious manner.