| genuine(adjective, true, basic, inborn) |
| indigenous(adjective, start, complete, natural, be) |
| innermost(adjective, intimate, secret, private, penetrating) |
| real(adjective, material, natural, essential, basic) |
| hereditary(adjective, basic, intrinsicality, inborn) |
| immanent(adjective, native, intrinsicality) |
| intestine(adjective, inside, interior, inner, internal) |
| intrinsical(adjective, intrinsicality) |
| normal(adjective, characteristic, natural, instinctive, automatic) |
| underlying(adjective, important, significant, original, essential) |
| built-in(adjective, start, basic, be, native) |
| domestic(adjective, inside, interior, inner, internal) |
| inherited(adjective, intrinsicality) |
| proper |
| reflex(adjective, natural, inside, interior, automatic) |
| actual(adjective, exact, physical, material, certain) |
| automatic(adjective, natural, inside, interior, within) |
| deep(adjective, original, essential, basic, intimate) |
| impulsive(adjective, natural, instinctive, automatic, involuntary) |
| instinctive(adjective, characteristic, natural, essential, automatic) |