counterside adjective 1noun 1forms 1 adjective1 •Beside a counter.While you're perched on a counterside stool, watch the video presentation that explains how Wolfgang candy is made. — 2001 noun1 •An opposite side.But there is a counterside to promotional hyperbole, for exaggerated promises that dovetail with people's hopes and expectations open the way to cynicism should promises falter or fail. — 1998 formscountersides