blackguardly

I have never got quite as far as rattlesnakes, because rattlesnakes have a blackguardly, welshing look that I don't approve.

And I suppose we should not have met now, except for the blackguardly action of this man who posed as your friend.

"I think it confounded blackguardly, and you ought to be kicked out," ruffling like a cock-turkey with trailed wings.

Tim is a blackguardly kind of politician, but he is mighty cute, and shirks Irish securities.

The Board meetings are usually blackguardly beyond description.