| congenital(adjective, complete, reasonable, ordinary, natural) |
| indigenous(adjective, complete, reasonable, ordinary, natural) |
| innate(adjective, complete, reasonable, ordinary, natural) |
| native(adjective, complete, reasonable, ordinary, natural) |
| natural(adjective, characteristic, complete, ordinary, usual) |
| connate |
| inherited |
| anticipated(reasonable, ordinary, usual, normal, logical) |
| characteristic(reasonable, ordinary, usual, normal, logical) |
| connatural(characteristic, complete, reasonable, ordinary, natural) |
| consistent(reasonable, ordinary, usual, normal, logical) |
| constant(reasonable, ordinary, usual, normal, logical) |
| constitutional |
| counted on(expression, reasonable, ordinary, usual, normal) |
| endemic |
| essential(characteristic, reasonable, ordinary, natural, normal) |
| general(reasonable, ordinary, usual, normal, logical) |
| hereditary |
| inborn(adjective, characteristic, complete, reasonable, ordinary) |
| inbred |