不再是...而是...
Reach for this when you want to mark a change of state — 'no longer A, but now B.' The 不再 specifies that A used to be true; 而是 introduces what's true now. Heavy in analysis, commentary, and any framing of a shift over time: the world, a company, a relationship, a generation. The key difference from plain 不是...而是... is the timeline: this pattern implies A had its day.
Structure
[SUBJECT] 不再是 [A]，而是 [B]
bú zài shì... ér shì...
How to Think About It
再 means 'again' or 'still' — and 不再 negates the 'still,' so it's 'not anymore.' The sentence acknowledges a past truth and announces its end. Use this when both sides matter: the old reality and the new one. If A was never true, switch to 不是...而是.... If you only need 'no longer A' without naming what replaced it, drop 而是 and stop after the first clause.
Examples
他不再是小孩，而是一个成年人。
Tā bú zài shì xiǎohái, ér shì yí ge chéngnián rén.
He's not a child anymore — he's an adult now.
中文不再是少数人的兴趣，而是很多家长的选择。
Zhōngwén bú zài shì shǎoshù rén de xìngqù, ér shì hěn duō jiāzhǎng de xuǎnzé.
Chinese is no longer a niche interest — it's the choice of many parents now.
这家店不再是一家书店，而是一家咖啡馆。
Zhè jiā diàn bú zài shì yì jiā shūdiàn, ér shì yì jiā kāfēi guǎn.
This shop is no longer a bookstore — it's a café now.
Common Mistake
Learners use this when A was never the case — they confuse it with plain 不是...而是.... The 再 in 不再 commits you to 'A used to be true.' If A was never true, the sentence becomes misleading.
他不再是日本人，而是中国人。 (he was never Japanese)
他不是日本人，而是中国人。
Don't Confuse With
不是...而是...
Use when A was never true. 不再是...而是... when A used to be true but isn't anymore.
已经不是...了
Similar 'no longer' meaning but doesn't pair with 而是. Use when you only want to retire A without naming B.
从...变成...
Describes a transformation directly ('went from A to B'). Use 不再是...而是... when you want to emphasize what it is NOW; 从...变成... when the process is the point.
Practice
他 ___ 是学生，而是老师了。
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不再
这里不再是农村，___ 一座城市。
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而是
Arrange: 不再是 / 而是 / 一种习惯 / 跑步 / 一种爱好 / 我的
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跑步不再是我的一种爱好，而是一种习惯。
AI is no longer science fiction — it's part of daily life.
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AI不再是科幻小说，而是日常生活的一部分。
Use 不再是...而是... to describe how something has changed.
Show answer
周末对我来说不再是休息时间，而是陪孩子的时间。
Hear It in Real Episodes
This pattern appears in 4 Fluentide episodes:
不再是一个冷战时期的地缘政治象征。
现在的问题不再是它们有没有责任，而是责任有多大。
未来的零售战场，不再是单纯的价格战，而是供应链效率、选品眼光以及对消费者生活方式洞察力的全方位比拼。