JUSTIFICATIVE

justificative, justificatory, vindicatory

(adjective) providing justification

defensive, justificative, justificatory

(adjective) attempting to justify or defend in speech or writing

Source: WordNet® 3.1

Adjective

justificative (comparative more justificative, superlative most justificative)

justificatory

Source: Wiktionary

Jus*tif"i*ca*tive, a. Etym: [Cf. F. justificatif.]

Definition: Having power to justify; justificatory.

Source: Webster’s Unabridged Dictionary 1913 Edition