adj very imperfectly developed; in an early stage of development; embryonic.
2. rudimentary ·adj of or pertaining to rudiments; consisting in first principles; elementary; initial; as, rudimental essays.
adj very imperfectly developed; in an early stage of development; embryonic.
2. rudimentary ·adj of or pertaining to rudiments; consisting in first principles; elementary; initial; as, rudimental essays.
Webster English vocab. Английский словарь Webster. 2012