Definitions of relentlessness

n mercilessness characterized by an unwillingness to relent or let up

“the relentlessness or their pursuit”
inexorability, inexorableness
Type of:
mercilessness, unmercifulness
inhumaneness evidenced by an unwillingness to be kind or forgiving

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, can put you on the path to systematic vocabulary improvement.