衰减 Traditional 衰減 shuāi jiǎn 🔊 to weaken HSK 7–9 + Review this word Meanings shuāi jiǎn 衰減 to weakento attenuate Its characters 衰shuāito decay; to decline; to wane减jiǎnto lowerHSK 4 Words with 衰减 光纤衰减 guāng xiān shuāi jiǎn optical attenuation