decliner

/dɪˈklaɪnər/
noun
  1. A person or thing that refuses or rejects something.
    • She was a polite decliner of every party invitation.
    • The company is a known decliner of unsolicited business proposals.
    • As a decliner of credit cards, he always paid with cash.
  2. A person or thing that becomes smaller, weaker, or less in amount or quality.
    • He was a steady decliner in physical fitness after the injury.
    • The decliner of the town's population worried local officials.
    • The stock market decliner lost half its value in a month.
Antonyms
What does "decliner" mean? | whatsthatwordmean | whatsthatwordmean