The word "protraction" refers to the act of prolonging or extending something. Its antonyms, on the other hand, are words that convey the opposite meaning. Some antonyms for "protraction" might include words like "reduction," "shortening," "abridgment," "compression," or "curtailment." These words suggest the idea of making something smaller or shorter, rather than extending or prolonging it. Additionally, other antonyms for "protraction" might include words like "hastening," "acceleration," or "speeding up," which again suggest the opposite idea of slowing down or extending something. Understanding these antonyms can help to clarify the meaning of "protraction" and provide a deeper understanding of the concept.