justifiability|ˌdʒʌstɪfaɪəˈbɪlɪtɪ| [f. next: see -ity.] = justifiableness. 1884Law Times 6 Sept. 320/2 The justifiability of hostile acts unpreceded by declaration of war.1897Allbutt's Syst.Med. III. 921 Attacks..so slight as to make the justifiability of any operation a matter of question.