| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | sendanka | sendankaj |
| Accusative | sendankan | sendankajn |
| Danish | utaknemlig |
|---|---|
| Dutch | ondankbaar |
| English | thankless; ungrateful; unthankful |
| French | ingrat |
| German | undankbar |
| Greek | αγνώμων |
| Icelandic | vanþakklátur |
| Italian | ingrato |
| Norwegian | utakknemlig |
| Papiamento | desagradesido; ingrato |
| Portuguese | ingrato |
| Saterland Frisian | uuntonkboar |
| Swedish | otacksam |