这次袭击被描述为特别懦弱。

The attack was described as particularly ___cowardly.

他在冲突中懦弱的行为让朋友们失望。

His ___cowardly behavior during the conflict disappointed his friends.

将自己的错误归咎于他人被认为是懦弱的。

It is considered ___cowardly to blame others for your own mistakes.