Might i add one of my favorite underused insults?
Poltroon,
Otherwise known as a base and degraded coward
“You d*mned poltroon,” Washington rejoined, “you never tried them!” Always reluctant to resort to profanities, the chaste Washington cursed at Lee “till the leaves shook on the tree,” recalled General [Charles] Scott. “Charming! Delightful! Never have I enjoyed such swearing before or since.” Lafayette said it was the only time he ever heard Washington swear. “I confess I was disconcerted, astonished, and confounded by the words and the manner in which His Excellency accosted me,” Lee recalled. -Ron Chernow, Washington A Life