absolute
indefeasible
infrangible
inviolable
non-negotiable
nontransferable
unassignable
untransferable
bound up in
bound up with
deep-seated
esoteric
immanent
impartible
implanted
implicit
imprescriptible
incommunicable
indeprivable
indissoluble
indivisible
indwelling
infixed
ingrained
inherent
inner
inseparable
internal
intrinsic
inward
inwrought
irreducible
noncommunicable
noncontagious
noninfectious
private
resident
secret
subjective
unalienable
unchallengeable
undividable
unforfeitable
unimpartable
unquestionable
God-given
hereditary
imperishable
indestructible
indisputable
ingenerable
irrefragable
partible
rightful
unchangeable
undisputed
undivided
undoubted
unincumbered
alienable