inelastic

1. (literal or figurative) Lacking elasticity; inflexible, unyielding.Examples: "He spoke languidly, and only those few words, like a watch with an inelastic spring, that just ticks a moment or two and stops again."; "I cannot believe that Christ himself intended that his religion should be so inelastic, so hard and fast, so cruel as you imply."

2. (economics) Insensitive to changes in price.Examples: "perfectly inelastic supply"; "A different approach is needed now, as there is more discretionary travel which, unlike the use of season tickets, does not have inelastic demand characteristics."

3. (US, politics) Resistant to swings during elections; predictable.US