Wiktionary
overdramatic
a. dramatic to excess.
Usage examples of "overdramatic".
Knowing that it was a trifle overdramatic, but considering the mental capabilities of the two involved, he drew his sword.
Nylan gave back an equally overdramatic sigh and pulled the metal from the coals and eased it onto the anvil.
She then sighed deeply and walked over to the police car in a very overdramatic manner, shaking with muscle tremors and generally behaving like the ancient person she wasn't.
It was grossly overdramatic, of course, but the parallels were fairly obvious, and the news media love to be obvious.