1. to estimate something as being larger, greater, better, or more important than it actually is

1. an estimate that is too high or too favorable

Examples

• Don’t overestimate your ability to finish the project in one day.
• The company overestimated demand for their new product.
• I think you’re overestimating how much time we have.
• The budget was based on an overestimate of expected revenue.
• His overestimate of the distance made us leave too early.
• It’s easy to overestimate the difficulty of learning a new skill.
• The initial cost overestimate caused unnecessary concern among investors.