What does the word redoubtable mean?

Usage examples for redoubtable

  1. The redoubtable Captain John Smith, making his way to the New England coast from Virginia, happened to drop a fishline over what is known now as George's Bank. – American Merchant Ships and Sailors by Willis J. Abbot
  2. The redoubtable Struthers, it must be recorded, to- day handed me another paper, and almost as triumphantly as the first one. – The Prairie Mother by Arthur Stringer
  3. The crew yelled with delight and gave three cheers for the redoubtable old frigate. – Jefferson and his Colleagues A Chronicle of the Virginia Dynasty, Volume 15 In The Chronicles Of America Series by Allen Johnson