Lean-minded refers to a person who believes in minimalism, simplicity, and efficiency. There are several synonyms for lean-minded, including frugal, economical, and thrifty. A frugal person is someone who is keen on saving resources, while an economical person is one who is mindful of the resources used to accomplish a task. A thrifty person is someone who is careful in the management of resources, especially money. Other synonyms for lean-minded include resourceful, pragmatic, and pragmatical, alluding to the ability to make the most out of available resources. Overall, lean-minded individuals are practical, calculated, and focused on achieving specific outcomes while utilizing the least amount of resources possible.