adjutant /ˈæ.d͡ʒə.tənt/noun 3adjective 1forms 1 noun3 •An assistant. •A lower-ranking officer who assists a higher-ranking officer with administrative affairs. •Either the greater or the lesser adjutant, stork species of the genus Leptoptilos, family Ciconiidae, native to India and Southeast Asia. adjective1 •Assistant; who helps a higher-ranking officer. formsadjutants