The phrase "sucking in" typically refers to inhaling or drawing in air or other substances. Its antonyms, or opposite meanings, include exhaling, breathing out, releasing, and letting go. In a more figurative sense, "sucking in" can mean to draw in or absorb information, experiences, or emotions. Its antonyms, in this context, might include ignoring, dismissing, avoiding, or deflecting. Understanding antonyms is crucial in effective communication, allowing individuals to convey contrasting or nuanced meanings and avoid confusion or misinterpretation.