say it: roo-duh-MEN-tur-ee
rudimentary is an adjective meaning "being or involving basic facts or principles". It carries 3 recorded senses.
being or involving basic facts or principles
“the fundamental laws of the universe”
“a fundamental incompatibility between them”
“these rudimentary truths”
“underlying principles”
Definitions, synonyms and semantic relations for rudimentary come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.