relentless

/rɪˈlentləs/📚 7147 100 2托福雅思
Something bad that is relentless never stops or never becomes less intense. 毫不留情的

adjective [原级]坚韧的,不屈不挠的;残酷无情的,不留情面的;不停的,不间断的

Someone who is relentless is determined to do something and refuses to give up, even if what they are doing is unpleasant or cruel.
坚持不懈的

-less 表形容词,""无…的,不…的”relentless 无情的(relent 宽厚)
单词造句: