| English adjective: supplemental | |||
| 1. | supplemental functioning in a supporting capacity | ||
| Samples | The main library and its auxiliary branches. | ||
| Synonyms | auxiliary, subsidiary, supplementary | ||
| Similar | secondary | ||
| Antonyms | primary | ||
| 2. | supplemental added to complete or make up a deficiency | ||
| Samples | Produced supplementary volumes. | ||
| Synonyms | supplementary | ||
| Similar | additive | ||
| Antonyms | subtractive | ||