designful,a.|dɪˈzaɪnfʊl| [f. design n. + -ful.] Full of design; purposed, intentional. a1677[see next].1867J. H. Stirling Crit.Ess. (1868) 206 The ascription to Kant of designful reticence and intentional obscurity.1890― Gifford Lect. iv. 73 The..designful contrivance of the world.