| English adjective: undeveloped | |||
| 1. | undeveloped not developed | ||
| Samples | Courses in interior design were rare and undeveloped. Undeveloped social awareness. | ||
| Similar | budding, rudimentary, vestigial | ||
| Antonyms | developed | ||
| 2. | undeveloped undeveloped or unused | ||
| Samples | Vast unexploited (or undeveloped) natural resources. Taxes on undeveloped lots are low. | ||
| Synonyms | unexploited | ||
| Similar | fallow, untapped | ||
| Antonyms | exploited | ||