[scientific computation] The preferred modifier for overstating an understatement. As in: highly nonoptimal, the worst possible way to do something; highly nontrivial, either impossible or requiring a major research project; highly nonlinear, completely erratic and unpredictable; highly nontechnical, drivel written for lusers, oversimplified to the point of being misleading or incorrect (compare drool-proof paper). In other computing cultures, postfixing of in the extreme might be preferred.