1. resembling or suggestive of the flu; having symptoms similar to influenza
Usage: informal; commonly used in everyday speech to describe mild or early flu-like symptoms

Examples

• I've been feeling fluish all week with a sore throat and body aches.
• She called in sick because she was feeling fluish and didn't want to spread it to coworkers.
• The fluish symptoms started on Monday but improved by Wednesday.
• He described his condition as fluish rather than a full-blown case of the flu.
• After the vaccine, some people report feeling slightly fluish for a day or two.