irremovable

from WordNet (r) 3.0 (2006)

irremovable
    adj 1: incapable of being removed or away or dismiss;
           "irremovable boulders"; "irremovable obstacles" [ant:
           {removable}]

from The Collaborative International Dictionary of English v.0.48

Irremovable \Ir`re*mov"a*ble\, a.
   Not removable; immovable; inflexible. --Shak. --
   {Ir`re*mov"a*bly}, adv.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

19 Moby Thesaurus words for "irremovable":
      adamant, adamantine, at a standstill, firm, fixed, frozen,
      immobile, immotile, immotive, immovable, inflexible, pat, rigid,
      standpat, stationary, steadfast, unmovable, unmoving, unyielding

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