The term "glancing off" refers to something that just grazes or touches a surface and moves away. Antonyms for this term would include direct or forceful impact, collision, or contact with a surface. Words like crashing, smashing, slapping, or hitting could be used to describe the opposite of "glancing off." These antonyms suggest a more impactful, forceful, or even destructive outcome. Additionally, words like sticking, clinging, or affixing would indicate the opposite of "glancing off," implying that something remains in close contact or attaches to the surface. By exploring the opposite meanings, we can better understand the nuance and implications of using the phrase "glancing off.