Leonine/ˈliːənaɪn/ Definition 1 of 3Pro Tip 1/3Physical Description Used to highlight characteristics similar to a lion's appearance. His leonine stance commanded attention. Pro Tip 2/3Metaphorical Use Sometimes used metaphorically to describe something majestic or powerful. She approached the challenge with a leonine grace. Pro Tip 3/3Literary Flavor Adding 'leonine' can give a literary or poetic touch to descriptions. In the sunlight, his leonine hair shimmered golden.