OVERESTIMATION Scrabble 19 Words With Friends 22 Definition noun an appraisal that is too high. — synonyms: overestimate, overvaluation, overappraisal noun a calculation that results in an estimate that is too high. — synonyms: overestimate, overrating, overreckoning See all 1938 words you can make from OVERESTIMATION → 14-letter words Words starting with O Words ending with N ← Unscramble different letters