Traditional: 無效
无效 (wú xiào) means “not valid; ineffective; in vain”. It is an HSK 6 Chinese word (traditional 無效) in the HSK 3.0 vocabulary.
Practice each character:
这张优惠券已经无效了。
Zhè zhāng yōuhuìquàn yǐjīng wúxiào le.
This coupon is no longer valid.
Updated: 2026-07-18