abandoner
nounUK /əˈbæn.dən.ər/
US /əˈbæn.dən.ɚ/
A person who leaves someone or something behind and does not come back.
The abandoner left the little dog alone in the park.
RELATED WORDS
OTHER MEANINGS
2. A person who gives up on a plan or task before it is finished.
He was an abandoner of projects, never finishing what he started.
3. Someone who leaves a place or group permanently.
The abandoner of the old team moved to a new city.
4. A person who stops caring for something they once looked after.
The abandoner of the garden let all the plants dry out.