tightsome adjective 1adverb 1forms 2 adjective1 •Characterised or marked by tightness.In the subway, squeezed and tightsome, (This is not to be a rhyme Of the subway. That I'll write some Other time.) — 1917 adverb1 •(nonstandard) In a tightsome manner, tightly.Most of him rags, and all of him lean, And the belt round his belly drawn tightsome in, He lifted his peaked old grizzled head, And these were the very same words he said […] — 1914 formsmore tightsome · most tightsome