Definition
To do something 'thinly' means to do it in a way that lacks substance, density, or depth. It can refer to a physical attribute, like slicing something thinly, or a more abstract quality, like arguing a point thinly. Think of spreading butter very sparsely on bread. Unlike thickly or densely, 'thinly' suggests a lack of completeness or fullness. It often implies a superficial or inadequate approach.