| inboard | (adjective) located within the hull or nearest the midline of a vessel or aircraft | - |
|---|
| inborn | (adjective) normally existing at birth | Synonyms: connatural, inbred |
|---|
| (adjective) present at birth but not necessarily hereditary; acquired during fetal development | Synonyms: congenital, innate |
| inbound | (adjective) directed or moving inward or toward a center | Synonyms: inward |
|---|
| inbred | (adjective) produced by inbreeding | - |
|---|
| (adjective) normally existing at birth | Synonyms: connatural, inborn |
| inbuilt | (adjective) existing as an essential constituent or characteristic | Synonyms: built-in, constitutional, inherent, integral |
|---|