rudimentary

/ˌrudəˈmɛntəri/
adjective
  1. Involving or limited to basic principles or skills; not advanced or complex.
    • The shelter was rudimentary, made of just a few branches and leaves.
    • The students learned rudimentary cooking techniques like boiling an egg.
    • His rudimentary knowledge of Spanish was enough to order food at the restaurant.
  2. Relating to an early, simple stage of development; not fully formed.
    • In the embryo, the heart begins as a rudimentary tube.
    • The fossil showed rudimentary wings that could not yet support flight.
    • The village had only a rudimentary system for collecting rainwater.
What does "rudimentary" mean? | whatsthatwordmean | whatsthatwordmean