The crossword solution for the term SOW'S OPPOSITE is REAP, which is a four-letter word. REAP is an agricultural term that refers to the harvesting of crops that have been sown. It is the opposite of sowing, which is the process of planting seeds in the ground. Reaping is the final step in the cycle of growing crops, and it is necessary for farmers to be able to harvest their crops and make a living.