The word 不再 is formed through the logical combination of two fundamental conceptual characters: 不 (bù), meaning "not", which negates or stops an action or state, and 再 (zài), meaning "again" or "anymore", which inherently points to a future repetition or continuation. By placing the negation directly before the concept of continuation, the compound semantically fuses to express the cessation of that very continuation, the idea that something which happened before will not happen again, thus creating the single unified meaning of "no longer".