[1] : The Collaborative International Dictionary of English v.0.48

immobile \immo"bile\, a. l. immobilis: cf. f. immobile. see
   immobility.
   incapable of being moved; immovable; fixed; stable. --prof.
   shedd.
   1913 webster immobilisation
see also:
immobility 

[2] : WordNet (r) 2.0

immobile
     adj 1: not capable of movement or of being moved ant: mobile
     2: securely fixed in place; "the post was still firm after
        being hit by the car" syn: fast, firm
see also:
mobile fast firm 

[3] : Moby Thesaurus II by Grady Ward, 1.0

83 moby thesaurus words for "immobile":
   abiding, adamant, adamantine, at a standstill, at anchor,
   changeless, constant, contemplative, continuing, dead-still,
   do-nothing, dormant, durable, enduring, firm, fixed, frozen, idle,
   immotile, immotive, immovable, immutable, inactive, inert,
   inflexible, intact, inviolate, irremovable, laissez-aller,
   laissez-faire, lasting, meditative, motionless, moveless, neuter,
   neutral, out of commission, paralytic, paralyzed, passive, pat,
   permanent, perpetual, persistent, procrastinating, quiescent,
   quietist, quietistic, remaining, riding at anchor, rigid, solid,
   stable, stagnant, stagnating, standpat, static, stationary,
   statuelike, staying, steadfast, still, stock-still, sustained,
   torpid, unaltered, unchangeable, unchanged, unchanging, unchecked,
   undestroyed, unemployed, unfading, unfailing, unmovable, unmoved,
   unmoving, unshifting, unvaried, unvarying, unyielding, vegetable,
   vegetative

Immobile >> I Words
Immobile, definition of term: Immobile
immobile_pag1.html