| Infantilismus | infantilism |
| Infinitismus | infinitism |
| Infallibilismus | infallibilism |
| Infantilität | childishness |
| Byzantinismus | byzantinism byzantism |
| Merkantilismus | mercantilism |
| Fatalismus | fatalism |
| Nativismus | nativism |
| Infantilisierung | infantilization |
| infantilisieren | infantilize |
| Infanterist | foot soldier footman infantryman |
| Infantizid | infanticide |
| infantil | infantile |
| Fanatismus | fanaticism |
| Kantianismus | Kantianism kantianism |
| Tantrismus | tantrism |
| Antinatalismus | antinatalism |
| Gigantismus | gigantism |
| Pantheismus | pantheism |
| Intentionalismus | intentionalism |