| Deutsch | English |
|---|---|
| andere | other |
| felsenfest | adamant |
| felsenfest | adamantine |
| felsenfest | unwavering |
| felsenfest | unshakable |
| felsenfest | unshakeable |
| felsenfest | unshakeably |
| felsenfest | unshakably |
| felsenfest | unwaveringly |
| Sprachgebrauch | usage |
| felsenfest | rock-solid |
| Ich bin felsenfest davon überzeugt. | I'm firmly convinced of it. |