unmodifiable

from WordNet (r) 3.0 (2006)
unmodifiable
    adj 1: incapable of being modified in form or character or
           strength (especially by making less extreme); "these
           variations from custom are illogical, incomprehensible,
           and unmodifiable" [ant: {modifiable}]
    
from The Collaborative International Dictionary of English v.0.48
Unmodifiable \Unmodifiable\
   See {modifiable}.
    

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