retrogressive adjective 2noun 1forms 3 adjective2 •Of or relating to retrogression.Hence, regional soil degenerations and podsolization was probably an important factor contributing to the retrogressive change in the forest composition at the end of the mesocratic phase. — 1987 •Directed towards the rear or the past; retrograde. noun1 •A person of retrogressive views or policies; a backward-looking conservative. formsretrogressives · more retrogressive · most retrogressive