| Case | Singular | Plural |
|---|---|---|
| nom | kosmopolitismus | kosmopolitismy |
| gen | kosmopolitismu | kosmopolitismů |
| dat | kosmopolitismu | kosmopolitismům |
| acc | kosmopolitismus | kosmopolitismy |
| voc | kosmopolitisme | kosmopolitismy |
| loc | kosmopolitismu | kosmopolitismech |
| instr | kosmopolitismem | kosmopolitismy |