Sidewind refers to a type of wind that blows parallel or perpendicular to the direction of movement. Instead of using the term sidewind, one could use the synonyms such as a crosswind, a lateral wind, a gusty breeze, or a zephyr. A crosswind can suggest a wind moving from one side to the other, while a lateral wind suggests a wind moving horizontally. A gusty breeze implies a strong and unstable wind, and a zephyr can imply a gentle and subtle breeze. Using these synonyms can help create more variety in one's writing and better describe the exact type of wind being experienced.