Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “rudimentary”


adjective    /ˌrud·əˈment·ə·ri, -ˈmen·tri/
only basic, and not deep or detailed: She has only a rudimentary grasp of the language.
(Definition of rudimentary adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of rudimentary

Browse related topics

You are looking at an entry to do with Crude and basic, but you might be interested in these topics from the Easy and difficult topic area:

Definitions of “rudimentary” in other dictionaries

Translations of “rudimentary”

Word of the Day


the quality of knowing someone very well, liking them a lot, and wanting to spend a lot of time together

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More