What does an exaggerated or unsubstantiated claim mean?

An exaggerated claim is one that amplifies the truth or presents information in a way that is significantly overstated, often to make something seem more impressive or important than it actually is. An unsubstantiated claim lacks sufficient evidence or verification to support its validity, making it unreliable. Both types of claims can mislead audiences and contribute to misinformation. It's crucial to critically evaluate such claims before accepting them as true.