在线词典心虚谓内心空明而无成见或谦虚而不自满; 胆怯; 神经衰弱。亦谓心跳不正常。拼音xīn xū解释谓内心空明而无成见或谦虚而不自满; 胆怯; 神经衰弱。亦谓心跳不正常。英文释义lacking in confidence; diffident; to have a guilty conscience