feral
https://gyazo.com/fa95411df22423a36888ed3efa17fa55
source: By Brisbane City Council - Feral Cat, CC BY 2.0,
adjective
(especially of an animal) in a wild state, especially after escape from captivity or domestication:
｟かたく｠ 〈ペット･家畜などが〉野生化した, 人の手を離れた
e.g. a feral cat.
resembling a wild animal:
｟文｠ 野性的な, 獣的な, 野蛮な; 野卑な.
e.g. a feral snarl.
ORIGIN
early 17th century: from Latin fera ‘wild animal’ (from ferus ‘wild’) + -al.