Feverish/ˈfiːvərɪʃ/ Definition 1 of 3Pro Tip 1/2Illness Indicator Indicates someone might be sick and could have an actual fever. After playing in the rain, she looked feverish and shivered. Pro Tip 2/2Subjective Feeling Describes a personal sensation, not always a true fever measured with a thermometer. Even though his temperature was normal, he felt feverish.