Ostentation : the pretentious or showy display of wealth and luxury, designed to impress.Ugliness : the quality of being unpleasant or repulsive in appearance.Poverty : the state of being extremely poor.Frugality : the quality of being economical with money or food; thriftiness.Modesty : the quality or state of being unassuming in the estimation of one's abilities.Antonym of Ostentation is Modesty