What does the word unfounded mean?

Usage examples for unfounded

  1. Yes; we had reasons, but they prove to have been unfounded. – Cynthia Wakeham's Money by Anna Katharine Green
  2. This charge has been particularly made against the Creeks, and I believe is not altogether unfounded. – A Ramble of Six Thousand Miles through the United States of America by S. A. Ferrall
  3. All these reports appear to have been equally and entirely unfounded. – Journal of an African Cruiser by Horatio Bridge
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