An anger aroused by something perceived as an indignity, notably an offense or injustice. / A self-righteous anger or disgust.

plural of indignation

Showing anger or indignation, especially at something unjust or wrong.

degradation, debasement or humiliation / an affront to one's dignity or pride

plural of indignity

(archaic) Unworthy, undeserving. / (obsolete) disgraceful / (obsolete) unbecoming

indignation

indignation

plural of indignancy