思索 sī suǒ 🔊 to think deeply HSK 7–9 + Review this word Meanings sī suǒ to think deeplyto ponder Its characters 思sīto think索suǒto search Words with 思索 不假思索 bù jiǎ sī suǒ to act without taking time to think HSK 7–9 不加思索 bù jiā sī suǒ see 不假思索[bu4 jia3 si1 suo3]