Which of the following is INCORRECTLY spelled.

The word Grievance is incorrectly spelled. The correct spelling is grievance.

Here are the words and their correct spellings:

• Paleolithic means relating to the earliest period of human culture, the Old Stone Age.
• Inflammable means easily set on fire.
• Grievance means a cause for complaint or dissatisfaction.
• Changeable means able to be changed or altered.