The phrase "fall flat on face" typically refers to a moment of embarrassment or failure. For those seeking to express the opposite meaning, antonyms could include phrases such as "succeeding with flying colors," "nailing it," "hitting the mark," or "coming out on top." Other antonyms might focus on the emotional state surrounding the act, such as "feeling confident," "carrying oneself with poise," or "exuding self-assurance." Emphasizing the opposite of stumbling or falling, these alternative expressions express a sense of triumph, accomplishment, and self-respect. By using antonyms for "fall flat on face," speakers and writers can highlight moments of success and achievement instead of focusing on failure.