incomplex adjective 1noun 1forms 3 adjective1 •Not complex; simple.And as the Ear is in Birds the most simple and incomplex of any Animals Ear; so we may from it make an easy and rational Judgment how Hearing is performed […] — 1742 noun1 •An item or thing, as opposed to a relationship between items.The source of Duns's error is to regard virtual knowledge as the property of something simple, so that knowledge of one incomplex can engender knowledge of another incomplex. — 1975 formsincomplexes · more incomplex · most incomplex