Synonym word of overestimation:
aggrandizement, amplification, baloney, boasting, caricature, coloring, crock, elaboration, embroidery, emphasis, enlargement, exaltation, excess, extravagance, fabrication, falsehood, fancy, fantasy, figure of speech, fish story, flight of fancy, hogwash, hyperbole, inflation, jazz, line, magnification, misjudgment, misrepresentation, overemphasis, overestimation, pretension, pretentiousness, rant, romance, stretch, tall story, untruth, whopper, yarn
aggrandizement, amplification, baloney, boasting, caricature, coloring, crock, elaboration, embroidery, emphasis, enlargement, exaltation, excess, extravagance, fabrication, falsehood, fancy, fantasy, figure of speech, fish story, flight of fancy, hogwash, hyperbole, inflation, jazz, line, magnification, misjudgment, misrepresentation, overemphasis, overestimation, pretension, pretentiousness, rant, romance, stretch, tall story, untruth, whopper, yarn