不迟 (bù chí) is an adverbial phrase meaning 'not too late' or 'still in time.' It combines the negation 不 (bù, 'not') with 迟 (chí, 'late'), literally 'not late.' Unlike standalone adjectives, it functions primarily to modify verbs or entire clauses, indicating that an action can still be done without missing an opportunity or deadline.

This phrase is commonly used in reassuring or encouraging contexts—such as responding to concerns about timing, confirming availability, or suggesting prompt but unhurried action. It often appears at the end of a sentence or after a verb, and carries a calm, optimistic tone. While not formal in register, it’s neutral and widely appropriate in both spoken and written Chinese, especially in daily conversations about schedules, appointments, learning, or life decisions.