Antonyms for the word "most gasping" would include adjectives that describe a calm, relaxed or effortless state such as relaxed, composed, easygoing, effortless, comfortable or effortless. These words may refer to a person's demeanor, breathing or physical state, which contrasts sharply with the tense and labored breathing associated with gasping. For instance, a person that is relaxed and comfortable may be described as "loose-limbed" or "laid-back." Furthermore, the antonyms may also reference a situation, such as a smooth or seamless transaction, whereas gasping conveys a sense of struggle or difficulty.