slenderizingсуществительное Gerund; denotes the act or process of making someone or something more slender. Usually uncountable.
slenderizingгерундий или причастие настоящего времени Used attributively to describe garments, activities, or effects that make someone or something appear slimmer.
She wore a slenderizing dress that made her look taller.
Она надела стройнящее платье, которое сделало её выше.
slenderizeгерундий или причастие настоящего времени Used attributively to describe something that makes a person or object appear slimmer.