The term 'LACKING EXCESS' can be summarized by the word 'LEAN', which is a four-letter word. LEAN means having little excess or unnecessary fat, flesh, or material. It is often used to describe a person's body shape or a company's operations. In terms of body shape, it is usually associated with being physically fit and healthy. In terms of business operations, it is usually associated with being efficient and cost-effective. Therefore, the term 'LACKING EXCESS' can be summarized as having little excess or unnecessary material, whether it be physical or operational.