Definition of unrightful in English:

unrightful

adjective

  • Unrighteous, unjust, wrong. Also as noun (with the and plural concord): unrightful people as a class.

Origin

Old English. From un- + rightful.

Pronunciation

unrightful

/(ˌ)ʌnˈrʌɪtf(ʊ)l/