endwise adverb 3adjective 1forms 2 adverb3 •Upright, or standing on end. •With the end towards the front or towards the observer. •Towards the ends. adjective1 •On-end; upright; pertaining or relating to the end.But the same slender member in bending and not in endwise compression can stand an extreme fiber stress several ... — 1914 formsmore endwise · most endwise