existing or done for a good reason, and therefore acceptablesynonymlegitimatejustifiable prideOxford Collocations Dictionaryverbsbe,seem,become,…adverbcompletely,entirely,perfectly,…prepositionon the grounds of something,on the grounds that…,on… grounds,…Seefull entryWord Originearly 16th cent. (in the sense ‘ready to be judged’): from French, from justifier ‘to justify’.Extra examplesThe rule is justifiable on safety grounds.We consider this action justifiable.Paying low wages is no longer justifiable.She took a justifiable pride in her son’s achievements.There were no justifiable grounds for sending him to prison.We need to address the justifiable concerns of the environmentalists.
See justifiable in the Oxford Learner's Dictionary of Academic EnglishSee justifiable in the Oxford Advanced American Dictionary