比较级: more senseless;最高级: most senseless;副词: senselessly;
中文词源
senseless 无意义的，无知觉的
sense,感觉，知觉，意义，含义，-less,无，没有。
英文词源
senseless (adj.)
1550s, "without sensation," from sense (n.) + -less. Of actions, etc., "devoid of purpose, proceeding from lack of intelligence," it is attested from 1570s. Related: Senselessly; senselessness.
双语例句
1. His death was a senseless waste of life.
他白浪费了性命，死得毫无意义。
来自《权威词典》
2. The thugs beat him senseless with a baseball bat.
暴徒用棒球棒把他打得失去了知觉.
来自《简明英汉词典》
3. The branch of a tree knocked one of the horsewomen senseless.
一根树枝撞得一名女骑手昏了过去.
来自《简明英汉词典》
4. It's about time we called a halt to all this senseless arguing.
现在正是我们停止一切无谓争论的时候了.
来自《简明英汉词典》
5. It's senseless to get angry over such a trifle.