adamance

noun

1. (uncountable)The quality of being adamant

   “I think it is a mistake for our intentions to be determined by the adamance with which the Protestants in Northern Ireland now express their opposition to such a course.”

   “[…] his witty eyes and unsmiling mouth, some adamance in his unspoken demand on her, and his quiet speech that day—it all seemed to be solemnly taking charge of her body.”

   “The ANC government came under fire on Tuesday as opposition parties voiced their adamance that the President Jacob Zuma-led government was responsible for ongoing corruption in the country.”