The antonyms for the word "smoothed along" can be "jagged," "coarse," "rough," or "bumpy." These antonyms denote an unevenness or a lack of smoothness along a surface, such as a road, a pathway, or a texture. Jagged implies a sharp, uneven edge or surface. Coarse suggests a roughness that is uncomfortable to the touch. Rough implies a surface that is uneven, irregular, or unrefined. Bumpy connotes an unevenness that results from small projections or indentations. In contrast to smoothed along, these antonyms suggest a surface that is not level or polished, but rather rough or irregular.