To invigorate means to give someone energy, strength, or enthusiasm. When you feel invigorated, you suddenly have more life and vigor in you. A cold splash of water on your face might invigorate you on a sleepy morning. A brisk walk outside can invigorate your mind when you've been sitting still too long.

When something invigorates you, it's like getting a fresh charge of power. Athletes often feel invigorated after warming up properly. A good night's sleep invigorates your body and mind for the next day.

Things that invigorate don't just wake you up: they make you feel stronger, more alive, and ready to tackle challenges. A teacher might invigorate a boring lesson by turning it into a game. Fresh air and sunshine invigorate people who've been cooped up inside. Some people find that listening to upbeat music invigorates them when they're feeling sluggish.

The opposite of invigorate would be exhaust, a word that means draining someone's energy away.