What is an Exclamatory Adjective? When ‘What’ is used before a noun to express exclamation, it is called the Exclamatory Adjective. Examples: What a movie!What a song!What a plan!What a hero!What a flower! Related posts: What is an Exclamatory Sentence? What is a Demonstrative Adjective? What is an Emphatic Adjective? What is a Distributive Adjective?