intrinsic (adj.)
- actual
- appropriate
- basic
- central
- characteristic
- congenital
- connate
- constitutional
- deep
- deep-seated
- distinctive
- distinguished
- elemental
- esoteric
- essential
- fundamental
- genuine
- hereditary
- idiosyncratic
- immanent
- implanted
- implicit
- inalienable
- inborn
- inbred
- indoor
- indwelling
- ingrained
- inherent
- inherited
- inmost
- innate
- inner
- innermost
- inside
- interior
- internal
- intimate
- inward
- inwrought
- irreducible
- marked
- native
- natural
- organic
- peculiar
- private
- proper
- quintessential
- real
- resident
- secret
- single
- singular
- subjective
- true
- unalienable
- unchallengeable
- underlying
- unique
- unquestionable