Overrate
Part of speech: verb
Definition: To esteem too highly; to give greater praise than due.
Overestimate
Part of speech: verb
Definition: to judge too highly:
Example sentence: In our culture, many of us idealize love. We see it as some lofty cure-all for all of life's problems. Our movies and our stories and our history all celebrate it as life's ultimate goal, the final solution for all of our pain and struggle. And because we idealize love, we overestimate it. As a result, our relationships pay a price.