REGARDFUL Meaning of REGARDFUL in English [re.gard.ful] adj (ca. 1586) 1: heedful, observant 2: full or expressive of regard or respect: respectful -- re.gard.ful.ly adv -- re.gard.ful.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012