1. (

• overestimate ,
• overestimation ,
• overvaluation ,
• overappraisal

) an appraisal that is too high ;

2. (

• overestimate ,
• overestimation ,
• overrating ,
• overreckoning

) a calculation that results in an estimate that is too high ;

1. (

• overestimate ,
• overrate

) make too high an estimate of; "He overestimated his own powers" ;

2. (

• overvalue ,
• overestimate ,

) assign too high a value to; "You are overestimating the value of your old car" ;