"Milk-livered" is an obsolete term that means cowardly or timid. Its antonyms are bold, brave, courageous, fearless, and gallant. Being bold means showing courage and confidence in the face of danger or difficulty. A brave person is someone who is willing to face danger, pain, or difficulty without fear. Courageous individuals possess mental or moral strength to face fear, danger, or intimidation. A fearless person shows a lack of fear, and a gallant person is brave and chivalrous. Therefore, using antonyms like bold or fearless instead of milk-livered displays strength, bravery, and determined attitudes of individuals.