资料来源 : Webster's Revised Unabridged Dictionary (1913)

Inalienably \In*al"ien*a*bly\, adv.
   In a manner that forbids alienation; as, rights inalienably
   vested.

资料来源 : WordNet®

inalienably
     adv : in an inalienable manner; "this property is held
           inalienably"