underhand

"I know you'll try any underhand methods to kill him.

- I feel he'd have gone for him underhand.

- Isn't that a bit underhand?

- You want him to pitch underhand?

Amanda going underhand this time.

"I know you'll try any underhand methods to kill him.

- I feel he'd have gone for him underhand.

- Isn't that a bit underhand?

- You want him to pitch underhand?

Amanda going underhand this time.

"No trick too dirty or opportunity too underhanded."

- Ah! - Monkey, that was a deceitful, underhanded attack.

- And announce that this episode was an underhanded attempt by Sneaky Pete to discredit a colleague, and that Addison will not tolerate such behavior.

- In an underhanded way.

- It was a mean, dirty, underhanded trick.

"No trick too dirty or opportunity too underhanded."

- Ah! - Monkey, that was a deceitful, underhanded attack.

- And announce that this episode was an underhanded attempt by Sneaky Pete to discredit a colleague, and that Addison will not tolerate such behavior.

- In an underhanded way.

- It was a mean, dirty, underhanded trick.