1having, done for, or marked by a good or legitimate reason:the doctors were justified in treating her
2 Theology declared or made righteous in the sight of God.
3 Printing having been adjusted so that the print fills a space evenly or forms a straight line at the margin: [in combination]:the output is left-justifieda neatly justified list of namesjustified right margins
justified in other Oxford dictionaries
Definition of justified in the US English dictionary