反而 vs 相反 (on the contrary)

• 拼音: fǎn'ér / xiāngfǎn
• 结构: A ，反而 B (unexpected opposite within one flow) / A ，相反 ，B (contrasting two statements)
• 汉字拆解: 反 = 厂 (cliff) + 又 (hand), suggesting turning over; 相 = 木 (tree) + 目 (eye)

含义

Both 反而 and 相反 express contrast or opposition, but they function differently. 反而 means 'on the contrary' or 'instead' within a single sentence, indicating an unexpected opposite result. 相反 means 'on the contrary' or 'conversely' and introduces a contrasting statement, often between two separate clauses or sentences.

The key distinction is grammatical role. 反而 is an adverb that modifies the predicate within a clause, expressing that the result is the opposite of what was expected: 吃了药，反而更严重了 (After taking medicine, it actually got worse instead). It always implies surprise or irony. 相反 is typically used as a conjunction or adjective. As a conjunction, it introduces a second clause that states the opposite of the first: 她没有放弃，相反，她更努力了 (She didn't give up; on the contrary, she tried harder). Unlike 反而, 相反 does not require the contrast to be unexpected — it simply states an opposing fact. 反而 cannot stand alone between sentences the way 相反 can.

例句

1. 吃了药以后，他反而觉得更难受了。
2. 大家都在休息，她反而更忙了。
3. 我以为他会生气，相反，他很平静。

用法指南

语境: spoken, written

语气: contrastive

正确说法

• 他没有因为失败而放弃，反而更加努力了。
• 我本来以为会很无聊，反而玩得很开心。
• 他不喜欢热闹，相反，他更喜欢一个人安静地待着。

错误说法

• 她很高兴，反而她很高兴。(反而 introduces an unexpected opposite — do not use it when both clauses express the same idea) → 她不但没有难过，反而很高兴。
• 他跑得快，相反跑得快。(相反 must introduce an opposing statement — the second clause must contrast with the first) → 他跑得快，相反，她跑得很慢。

起源与历史

反 means 'to turn over' or 'opposite' and 而 is a classical conjunction meaning 'and/but.' 相 means 'mutual' and 反 means 'opposite.' 反而 emphasizes an ironic reversal; 相反 straightforwardly marks opposition.

文化背景

世代: All ages

社会背景: Universal