definitive russian

• после́дний

  last, latest, recent

  final, ultimate, definitive

  latter

  (colloquial) worst

• оконча́тельный

  definitive and final

• обозна́чить

  designate/indicate

  Define/designate/clarify once and that's it.

  outlined or Something is clearly defined at a specific moment / Giving a definitive definition or explanation.

Examples

• В настоя́щий моме́нт с уве́ренностью э́того утвержда́ть нельзя.

  At the present time, that statement cannot be made definitively.