unexpress adjective 1verb 1forms 3 adjective1 •Not expressly stated.[…] there is an unexpress but perfectly clear understanding to this effect between themselves and their supporters. — 1890 verb1 •(rare) Hypothetically, to undo the expressing of.For Barthes, the task of the novelist is to unexpress what has already been expressed, to deliberately play havoc with what is undeniably — and therefore frustratingly — true. — 1978 formsunexpressed · unexpressing · unexpresses