What does the word gullible mean?

Usage examples for gullible

  1. " The world will say he is a gullible fool," said he gently. – The Husbands of Edith by George Barr McCutcheon
  2. Perfectly astonishing to me, Mr. Hale, that a man who has followed your profession as long as you have should be so gullible. – Death Points a Finger by Will Levinrew