rudimentary
adjectiveUK /ˌruːdɪˈmentəri/
US /ˌruːdəˈmentəri/
Very basic and simple, like the first small steps of learning something.
She has only a rudimentary knowledge of Spanish, but she can say hello and count to ten.
RELATED WORDS
OTHER MEANINGS
2. Not fully developed or formed yet.
The tadpole's legs were still rudimentary and too small to help it hop.
3. Involving only the most necessary parts, without extra details.
The cabin had rudimentary plumbing, just a sink and a toilet.
4. Relating to a first principle or early stage of a subject.
The course covers rudimentary math skills like adding and subtracting.