Below are the words that matched your query...
Unchanging
- showing little if any change; "a static population"  
- conforming to the same principles or course of action over time  
Untransmutable
- not capable of being changed into something else; "the alchemists were unable to accept the inconvertible nature of elemental metals"  
Unmodifiable
- incapable of being modified in form or character or strength (especially by making less extreme); "these variations from custom are illogical, incomprehensible, and unmodifiable"  
Unadjusted
- not altered to fit certain requirements; "an unadjusted figure of 8.5 percent"; "the unadjusted clock is running fast";  
- not having adapted to new conditions; "several unadjusted refugees"  
Unadapted
- not having adapted to new conditions; "several unadjusted refugees"  
- not changed in form or character for a purpose  
Unaltered
- remaining in an original state; "persisting unaltered through time"  
Unchanged
- remaining in an original state; "persisting unaltered through time"  
- not made or become different; "the causes that produced them have remained unchanged"  
Unmoved
- being in the original position; not having been moved; "the archeologists could date the vase because it was in-situ"; "an in-situ investigator"  
- emotionally unmoved; "always appeared completely unmoved and imperturbable"