unswayed

/ʌnˈsweɪd/
adjective
  1. Not influenced or affected by someone or something; firm in one's opinion or decision.
    • He was unswayed by the advertisement's promises and refused to buy the product.
    • Even after hours of debate, she was unswayed and voted against the proposal.
    • The judge remained unswayed by the lawyer's emotional plea and stuck to the facts.