coadjutant adjective 1noun 1forms 1 adjective1 •Mutually assisting or operating; helping.By Thracia's coadjutant and the roar Of loud Euroclydon's tumultuous gusts — 1706 noun1 •An assistant.The approaching winter and its coadjutants, rain, snow, and cold, have dictated the necessity for closing the 'Teatro del Soldato' up at the Front. — 1917 formscoadjutants
