Misestimate is a verb that means to wrongly evaluate or judge something, or to miscalculate its worth, value, time, or size. Some synonyms for misestimate are overestimate, underestimate, misjudge, miscalculate, misperceive, misapprehend, misconstrue, misunderstand, misread, misinterpret, or misreckon. Overestimate means to believe that something or someone is greater or more capable than they really are, while underestimate means to underestimate their true value or potential. Misjudge refers to incorrectly assessing someone's character or behavior, while miscalculate refers to incorrect arithmetic or calculation. Misread suggests an incorrect reading or understanding of something, while misinterpret means to interpret something in the wrong way.