失效

shī xiào

HSK 3.0 Level 7 Verb Uncommon

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Definitions

1. to fail
2. to lose effectiveness

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Word relationships

Antonyms

1 item

• 有效 yǒu xiào 有效 yǒu xiào effective 表示继续发挥作用，与失效相反: effective

Related words

1 item

• 作废 zuò fèi 作废 zuò fèi to become invalid 表示因无效而被废弃，常用于票证、文件: to become invalid

Synonyms

2 items

• 失败 shī bài 失败 shī bài to be defeated 表示未达成目标，用于计划、行动等: to be defeated
• 失灵 shī líng 失灵 shī líng out of order (of machine) 表示功能丧失，常用于机器、部件: out of order (of machine)

Usage notes

Collocations

常与‘过期’连用，如‘过期失效’，但‘失效’本身即可表达因时间而无效。

Common mistakes

‘失效’表示原本有效的东西变得无效，不用于描述未达到预期结果（此时用‘失败’）。例如不能说‘考试失效’。

Example Sentences

1 shown

这张优惠券已经 失效 了。

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Words Containing 失效

• 失效日期 失效日期 shī xiào rì qī: expiry date (of document)

Child Words of 失效

• 失 失 shī: to lose
• 效 效 xiào: effect