Sensationalists are people who try to make things sound more exciting or shocking than they really are, especially in news or stories.
Sensationalists are often seen as not very honest or trustworthy because they exaggerate things.
Examples:
The sensationalists always make the news sound scarier than it really is.
I don't trust those sensationalists, they always make things seem worse than they are.
The sensationalists in the movie made the story seem much more exciting than it really was.
The sensationalists said the cat was as big as a house!
The sensationalists always have the most exciting stories, even if they aren't true.
The sensationalists made the small fire seem like a huge disaster.