| masculin | feminin | neuter | plural | |
|---|---|---|---|---|
| Nominative | отбойный | отбойная | отбойное | отбойные |
| Genitive | отбойного | отбойной | отбойного | отбойных |
| Dative | отбойному | отбойной | отбойному | отбойным |
| Accusative inanimate | отбойный | отбойную | отбойное | отбойные |
| Accusative animate | отбойного | отбойную | отбойное | отбойных |
| Instrumental | отбойным | отбойной / отбойною | отбойным | отбойными |
| Prepositional | отбойном | отбойной | отбойном | отбойных |
| Short form | отбоен | отбойна | отбойно | отбойны |