قطعی (صفت)
absolute , decisive , definite , definitive , certain , final , unconditional , critical , decretive , decretory , positive , categorical , sure , last , categoric , conclusive , deterministic , trenchant , decided , magistral , terminative , peremptory , uncompromising , irrevocable
لازم (صفت)
obligatory , necessary , necessitous , needful , incumbent , intransitive , irrevocable
غیر قابل فسخ (صفت)
irrevocable