| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | insida | insidaj |
| Accusative | insidan | insidajn |
| Dutch | arglistig |
|---|---|
| English | insidious; disloyal; stealthy; treacherous |
| German | verfänglich; hinterlistig; hinterhältig; heimtückisch; Fang‐ |
| Portuguese | insidioso |
| Saterland Frisian | fielainich; luurich; luursk; oolk |
| Spanish | astuto |
| West Frisian | glûpsk |