rabid

The word "rabid" first brings to mind a sick, dangerous animal, and that is where it began. It originally described an animal infected with rabies, often acting in a violent and wild way. But the word is also used in a figurative sense. We use it for people whose support, interest, or belief is so strong that it seems extreme or out of control. A rabid sports fan, for example, may cheer nonstop, argue fiercely, and take every game very personally. The word usually suggests intensity that feels a little alarming, not just simple excitement.

"Rabid" originally described animals infected with the rabies virus—a terrifying disease that attacks the nervous system, causing aggression, confusion, and ultimately, death. Think of a wild animal behaving unpredictably, foaming at the mouth, and attacking without provocation. That's a classic image of rabid behavior.

However, over time, "rabid" has taken on a figurative meaning. We now use it to describe someone with extremely intense and often uncontrolled enthusiasm, support, or hatred. In this sense, the word is usually negative. A "rabid supporter" of a political candidate may defend them blindly and attack anyone who disagrees. A "rabid critic" may condemn something with fierce, exaggerated anger.

The key to understanding the figurative use of "rabid" is the idea of behavior that feels uncontrolled, aggressive, or extreme. It suggests a person is so consumed by a feeling or opinion that they react in a way that seems unreasonable or alarming. Even when it refers to strong support rather than anger, it still carries the sense that the emotion has gone too far.

So whether you're talking about a dangerous animal or an overly zealous fan, "rabid" always points to something intense, uncontrollable, and potentially frightening in its energy.