Implacable is an adjective that is used to describe being opposed to someone or something in a very angry or determined way that cannot be changed. Unable to be stopped. Relentless.
- He has an ‘implacable’ hatred for individuals that like hurting others.
- Her ‘implacable’ sense of duty to do good with her life, allowed for her to accomplish all of the goals that she had originally set out.
- She has ‘implacable’ enemies who are trying their best to bring her down in every way, shape and form.