frugal

/ˈfruːɡəl/
adjective
  1. Careful about spending money or using resources; not wasteful.
    • Being frugal with water helps protect the environment.
    • She is very frugal and always looks for the best deals before buying anything.
    • His frugal habits allowed him to save enough money for a trip to Europe.
  2. Small in amount or cost; simple and not expensive.
    • They ate a frugal meal of rice and beans.
    • The family lived a frugal life in a small cottage.
    • He made a frugal budget that covered only the essentials.