肆口 sìkǒu speak without restraint Definitions Defs Origin Strokes Stroke Words Sentences Sents sìkǒu speak without restraint 肆 sì adjectiveverb unrestrained acting without restraint or caution; wanton; reckless口 kǒu nounverb speech speech; words; one's tone of voice or accentsìkǒu eat without restraint 肆 sì adjectiveverb unrestrained acting without restraint or caution; wanton; reckless口 kǒu noun mouth mouth of a person or animal; (bound form) oral