tristfully

• a word derived from triste.
  triste

  adjective

  sad; sorrowful; melancholy.
• a word derived from tristful.
  tristful

  adjective

  full of sadness; sorrowful.

More Suggestions

• wistfully
• frightfully
• blissfully
• trustful
• mistrustfully
• dreadfully
• faithfully
• fistful
• gracefully