| ill-conditioned system | sistem bersuasana tak sihat | Fizik | Tiada | Tiada |
| ill conditioning | persuasanaan tak sihat | Fizik | Tiada | Tiada |
| ill condition | suasana tak sihat/keadaan tak sihat | Fizik | Tiada | Tiada |
| ill-conditioned | bersuasana tak sihat | Matematik | Tiada | Tiada |
| ill conditioning | persuasanaan tak sihat | Matematik | Tiada | Tiada |
| ill-posed problem | masalah tak teraju rapi | Matematik | Tiada | Tiada |
| ill-conditioned problem | masalah bersuasana tak sihat | Matematik | Tiada | Tiada |
| ill-conditioned system | sistem bersuasana tak sihat | Matematik | Tiada | Tiada |
| ill will | niat jahat | Undang-undang | Tiada | Tiada |
| mental ill-health | uzur akal | Pendidikan | Tiada | Tiada |