impressionable /ɪmˈpɹɛ.ʃən.ə.bəl/adjective 1noun 1forms 3 adjective1 •Being easily influenced (especially of young people).I had never been an impressionable girl as far as men were concerned—I was not an impressionable woman. — 1908 noun1 •An impressionable person.They were the faces of the same gentlemen who plied the corruptibles in Rumania with cash and impressed the impressionables with Germany's power. — 1942 formsimpressionables · more impressionable · most impressionable