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unsecured (EN)
adjective

adjective “unsecured”

base form unsecured, non-gradable
  1. not fastened or attached
    The ladder was left unsecured and could easily tip over.
  2. not protected or made safe
    Connecting to an unsecured Wi-Fi network can expose your data.
  3. (in finance) of a loan or debt, without collateral
    He took out an unsecured loan to pay for his vacation.