Ursine
/ˈɜːrsaɪn/
Definition 1 of 2
Pro Tip 1/3Physical Traits
Focus on strong, large physical characteristics when using 'ursine' in descriptions. 
His ursine hands could envelop hers entirely.
Pro Tip 2/3Not Just Size
Besides size, 'ursine' can imply a certain rugged or wild aspect. 
She admired the ursine roughness of his features.
Pro Tip 3/3Cultural Reference
Familiarize with how bears are viewed in different cultures to enhance understanding of 'ursine'. 
In his native folklore, the ursine spirit was a powerful guardian.