Pol‧ly‧an‧na /ˌpɒliˈænə $ ˌpɑː-/
noun [countable usually singular][
Date: 1900-2000;
Origin: Pollyanna, main character in the book Pollyanna (1913) by Eleanor Porter]
someone who is always happy and always thinks something good is going to happen
[TahlilGaran] Dictionary of Contemporary English ▲