Most invigorated refers to the feeling of being energized or refreshed. Antonyms for this word could include tired, exhausted, drained, lethargic, or sluggish. These words describe a state of low energy and vitality, the opposite of feeling invigorated. They may indicate someone who is lacking motivation, struggling to stay focused, or simply feeling worn out after a long day. While some people may find themselves feeling most invigorated after exercising or completing a challenging task, others may feel these antonyms after extended periods of stress or lack of sleep. Regardless, understanding these antonyms can help identify when someone may need a break or rest to recharge their energy levels.