adj.無(wú)知的；愚蠢的；發(fā)瘋的

"But do let her go, Jacky," coaxed his poor witless wife. “可是你非叫她去不可，捷奇，”他那位頭腦簡(jiǎn)單，智力低下的太太甜言蜜語(yǔ)地說(shuō)。

The assassination attempt that failed in July 1944 was witless and traitorous. 1944年7月以失敗而告終的那個(gè)暗殺企圖即無(wú)頭腦，又失信義。