Bareboned is an adjective that describes something that has been stripped down to its most basic elements. It can be used to describe a person, object, or idea that has been reduced to its most essential components. The term is often used to describe a situation or concept that has been simplified to its most basic form. The crossword solution for the term 'LEAN' is an appropriate descriptor for this term, as it implies a lack of excess or superfluous elements.