Sleeve'less adjective [ Anglo-Saxon sl...fleás .] 1. Having no sleeves. 2. Wanting a cover, pretext, or palliation; unreasonable; profitless; bootless; useless. [ Obsolete] Shak. « The vexation of a sleeveless errand.» Bp. Warburton. Found on http://www.encyclo.co.uk/webster/S/120