destituent UK /dɪsˈtɪtjʊˌənt/US /dəsˈtɪt͡ʃuˌənt/ adjective1 •(no longer used) Deficient; lacking.When any condition intrinsically and in the nature of the thing included in an affirmative precept is destituent or wanting , the duty itself falls without interpretation — 1660 formsmore destituent · most destituent