Antonyms for the word "sucking" could include words such as blowing, exhaling, expelling, or emitting. These words represent the opposite of sucking, as they involve the act of pushing air or other substances out instead of drawing them in. Other antonyms for sucking could include words such as rejecting, refusing, repelling, or ejecting. These words represent a more active form of opposition to sucking, indicating a conscious decision to resist or reject the process. Whether for scientific or literary purposes, antonyms for sucking can be useful in expanding vocabulary and clarifying meanings.