| Case | Singular | Plural |
|---|---|---|
| nom | extremista | extremisté, extremisti |
| gen | extremisty | extremistů |
| dat | extremistovi | extremistům |
| acc | extremistu | extremisty |
| voc | extremisto | extremisté, extremisti |
| loc | extremistovi | extremistech |
| instr | extremistou | extremisty |