senseless
/ˈsensləs/If you describe an action as senseless, you think it is wrong because it has no purpose and produces no benefit. 无意义的
adjective [原级] 愚蠢的;无知觉的;无意识的
If someone is senseless, they are unconscious. 失去知觉的; 不省人事的 They were knocked to the ground, beaten senseless and robbed of their wallets. 他们被打倒在地、不省人事,还被抢走了钱包。
后缀: less
【adjective】 表示缺乏或没有某种特性 - indicating the absence or lack of a particular quality
原词: senseless
是通过后缀 【less】 构成的派生词