| hrvatski | hrv-000 |
| neumoljiv | |
| English | eng-000 | immitigable |
| English | eng-000 | implacable |
| English | eng-000 | inexorable |
| English | eng-000 | irreducible |
| English | eng-000 | pitiless |
| English | eng-000 | steely |
| English | eng-000 | stern |
| English | eng-000 | stringent |
| English | eng-000 | unrelenting |