definition of relent
relent. 1  to soften in feeling, temper, or determination; become more mild, compassionate, or forgiving. 2  to become less severe; slacken: The winds relented. 3  Obsolete. to cause to soften in feeling, temper, or determination. 4  Obsolete. to cause to slacken; abate. 5  Obsolete. to abandon; relinquish.