Meaning: Feeling sluggish, tired, or lacking energy.

Memorization Trick: Think of a person so tired they can’t even lift their “lethargic” limbs.

Word Story:

Lethargic comes from the Greek word lethargos, meaning “forgetful” or “inactive.” It was used to describe people who seemed stuck in slow motion or sleepy all the time. Now it simply means super tired or low-energy—like your body hit the pause button.