"Bringing a screeching halt" refers to abruptly stopping or ending something in a loud or jarring manner. Antonyms for this phrase include "gradual cessation," "gentle conclusion," "smooth transition," "unhurried conclusion," and "easy stop." Using these antonyms can help to convey a more nuanced or subtle change, as opposed to a sudden, dramatic one. For example, one might say "the party gradually ceased as guests began to leave" or "the meeting came to a gentle conclusion, with everyone in agreement." Employing these antonyms can add variety and texture to one's language, and help to create a more immersive reading experience.