A more thorough explanation:

INFLAMMATORY

When something is inflammatory, it tends to cause strong feelings of anger, indignation, or other types of upset. It can also stir up passions.

• The politician's inflammatory speech caused a lot of controversy.
• The article's inflammatory headline sparked outrage among readers.
• The social media post was so inflammatory that it led to a heated argument.

These examples illustrate how something that is inflammatory can cause strong emotions and reactions in people. The politician's speech, article's headline, and social media post all had a provocative or controversial tone that stirred up anger or indignation in their respective audiences.