MOURNFUL Meaning of MOURNFUL in English [mourn.ful] adj (15c) 1: expressing sorrow: sorrowful 2: full of sorrow: sad 3: causing sorrow or melancholy: gloomy -- mourn.ful.ly adv -- mourn.ful.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012