Strungout, typically used to describe someone who is at the end of their rope or overwhelmed, is a word that has a wide range of antonyms which express the opposite. Calm, relaxed, tranquil, at ease, and composed are a few examples of the antonyms that could be used in place of strungout. If someone is not strungout, they may be described as stress-free, peaceful, or even steady. Being collected, composed, content, or cool-headed are all alternative ways to describe someone who is not strungout. These antonyms could be useful in various situations such as describing one's state of mind or encouraging someone to remain calm under pressure.