不假思索bùjiǎsīsuǒTop 40000Meanings1. (idiom) to act without taking time to think; to react instantly; to fire from the hipCharacters used不no假fake思to think索to searchExamples1汤姆Tāngmǔ不假思索bùjiǎsīsuǒ脱口而出tuōkǒu'érchū。Tom speaks without thinking.