a. | 1. | Of or pertaining to rudiments; consisting in first principles; elementary; initial; |
2. | (Biol.) Very imperfectly developed; in an early stage of development; embryonic. |
Adj. | 1. | rudimentary - being or involving basic facts or principles; "the fundamental laws of the universe"; "a fundamental incompatibility between them"; "these rudimentary truths"; "underlying principles" Synonyms: fundamental, underlying |
2. | rudimentary - being in the earliest stages of development; "rudimentary plans" | |
3. | rudimentary - not fully developed in mature animals; "rudimentary wings" Synonyms: vestigial |