Use 'lupine' when comparing something to a wolf's characteristics, suggesting wildness or fierceness. He had a lupine instinct for sensing danger.
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Visual Imagery
'Lupine' creates a strong visual image of wolf-like features, often used to describe a person's appearance. The actor was chosen for his striking lupine eyes.
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Metaphoric Use
Metaphorically, 'lupine' can imply someone being predatory or having an aggressive demeanor. She approached the negotiations with a lupine aggression.