relentless

US /rɪˈlɛntlɪs/

UK /rɪ'lentləs/

C1 cao cấp
adj.tính từkhông ngừng, không ngớt
The rain was relentless, starting early in the morning and continuing steadily throughout the whole night
adj.tính từkhông ngừng nghỉ, kiên trì
She was a relentless competitor, never giving up until the final whistle.
adj.tính từkhắc nghiệt, tàn nhẫn
The relentless heat of the desert sun made travel difficult.