過大評価

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

(2)あまりに高い価値を付す

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

(4)高過ぎる見積りをする

(1)He overestimated his own powers

(2)彼は、彼自身の力を過大評価した