The definition of indignant is feeling or showing anger because of something unjust.(adjective)
An example of indignant is a person who is disgusted by an act of prejudice that she just saw committed.
See indignant in Webster's New World College Dictionary
Origin: L indignans, prp. of indignari, to consider as unworthy or improper, be displeased at < in-, not + dignari, to deem worthy < dignus, worthy: see dignity
See indignant in American Heritage Dictionary 4
Origin: Latin indignāns, indignant-
Origin: , present participle of indignārī, to be indignant
Origin: , from indignus, unworthy; see indign.
Learn more about indignant