Immutable
Samuel Stewart
Definition:
adj. Never changing or varying
Synonyms:
unchangeable
enduring
inflexible
Antonyms:
changeable
variable
flexible
Sentences:
1. The county's immutable laws prevented citizens from parking on the street, even though there was usually some kind of movement to change the laws.
2. Many objects prove to be immutable in a vacuum, because there is nothing to act upon them to cause change.
Lazy dog doesn't want to walk