Etymology From French impressionnable, equivalent to impression + -able. See also impressible.
1
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, Elizabeth Strong Worthington, How to Cook Husbands, Library of Alexandria, →ISBN:
"Panbek is impressionable and full of emotion, with the temperament of the poet and all those little weaknesses, if we may call them so, which the poet pays as a ransom for his gifts."1925 July – 1926 May, A[rthur] Conan Doyle, “(please specify the chapter number)”, in The Land of Mist (eBook no. 0601351h.html), Australia: Project Gutenberg Australia, published April 2019:
3 more examples
Besides, there are a great many of these accusers, and they have been accusing me now for a great many years; and what is more, they approached you at the most impressionable age, when some of you were children or adolescents; and they literally won their case by default, because there was no one to defend me.1954, Plato, translated by Hugh Tredennick, “Socrates on Trial: The Apology”, in The Last Days of Socrates (Penguin Classics), Harmondsworth, Middlesex: Penguin Books, →OCLC, page 20:
As a result, Miss Brodie calls on her authority over her "impressionable" students in order to urge them into roles she herself is too afraid to occupy.2003, Jerilyn Fisher, Ellen S. Silber, Women in Literature: Reading Through the Lens of Gender, Greenwood Publishing Group, →ISBN, page 240:
Sages and mothers have long noted that humans, especially young humans, are impressionable. It is supposed that the environment that one inhabits plays a large role in a child's behavioral and moral development.2011, Jamie Carlin Watson, Robert Arp, What's Good on TV?: Understanding Ethics Through Television, John Wiley & Sons, →ISBN:
Etymology From French impressionnable, equivalent to impression + -able. See also impressible.
1
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, Frank Gervasi, War Has Seven Faces: