| 1. | pertaining to rudiments or first principles; elementary: a rudimentary knowledge of geometry. |
| 2. | of the nature of a rudiment; undeveloped or vestigial. |
| 3. | primitive. |
rudimentary ru·di·men·ta·ry (r&oomacr;'də-měn'tə-rē, -měn'trē)
adj.
Being imperfectly or incompletely developed; embryonic.
Being in the earliest stages of development; incipient.