overestimate Meaning, Definition & Usage

1. noun an appraisal that is too high
   overappraisal; overestimation; overvaluation.
   
2. noun a calculation that results in an estimate that is too high
   overrating; overestimation; overreckoning.
   
3. verb make too high an estimate of
   overrate.
   
   • He overestimated his own powers
4. verb assign too high a value to
   overvalue.
   
   • You are overestimating the value of your old car

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