overpowering adjective 1noun 1forms 3 adjective1 •That overpowers; so strong as to be overwhelming.The fact that approximately 40% of spoken language at the cafeteria was not English, suggests that the effect of the near 100% English signage is far from overpowering. — 2019 noun1 •The process of something being overpowered. formsoverpowerings · more overpowering · most overpowering