overestimate
1. [ verb ] make too high an estimate of
Synonyms: overrate
Examples:

"He overestimated his own powers"

Related terms: underestimate misjudge overcapitalize
2. [ noun ] (writing) an appraisal that is too high
Synonyms: overestimation overappraisal overvaluation
Related terms: appraisal overvalue
3. [ verb ] assign too high a value to
Synonyms: overvalue
Examples:

"You are overestimating the value of your old car"

Related terms: undervalue undervalue value overvaluation
4. [ noun ] (mathematics,psychology) a calculation that results in an estimate that is too high
Synonyms: overrating overreckoning overestimation
Related terms: estimate
Similar spelling:   overestimation
  overstate
  overstated
  overexcited
  overcritical
  overskirt
  oversight
  overstatement
  oversized
  oversensitive
  overactive
  ovariectomy
  overreaction
  overexertion
  overcrossing