degressive

/dɪˈɡrɛsɪv/
adjective
  1. Decreasing or reducing gradually, especially in rate or amount.
    • The company introduced a degressive pricing model for long-term customers.
    • A degressive tax system means you pay a smaller percentage as your income goes up.
    • The degressive discount offered 10% off the first item and 5% off the second.
Antonyms
What does "degressive" mean? | whatsthatwordmean | whatsthatwordmean