ill- - indi
- ill-advised
- ill-affected
- ill-assorted
- ill-behaved function
- ill-being
- ill-bestead
- ill-boding
- ill-bred
- ill-breeding
- ill-conceived
- ill-conditioned
- ill-conditioned equation
- ill-conditioned matrix
- ill-considered
- ill-defined
- ill-defined function
- ill-defined problem
- ill-definedness
- ill-devised
- ill-disposed