unequine
/uːnɪˈkwɪn/Definitions
1. adjective
Not matching or corresponding to a horse or equine animal
“The scientist studied the unique characteristics of the unequine mammal, which was found to be a type of rodent.”
2. noun
A thing that is not equine in nature or characteristics
“The unusual rock formation was an unequine sight to behold in the middle of the desert.”