不随意 bùsuíyì involuntary Origin Definitions Defs Strokes Stroke Words Sentences Sents 不随意肌 bùsuíyìjī involuntary muscle Muscles that cannot be controlled by the will but are regulated by the autonomic nervous system, such as those forming the walls of the internal organs; same as [[平滑肌|平滑肌|ping2 hua2 ji1]].