The phrase "rudimentary level" means having a basic or fundamental understanding or knowledge about something. It suggests that the knowledge or skills are at a very basic or initial stage. Full definition
Integrated learning is the most rudimentary level of collaboration across disciplines. (edutopia.org)
«This is very step - by - step, very basic stuff that people can do at the most rudimentary level.» (entrepreneur.com)
Such support may begin on as rudimentary a level as literal hand - holding whereby the pastor accepts the alcoholic's present weakness and supports the only strength that is available — his potential strength. (religion-online.org)