- Forsaker
- Desertor
- Quitter
- Renegade
- Leave-taker
- Defector
- Resigner
- Escaper
- Disserter
- Separatist
- Dissenter
- Abandoner
- Turncoat
- Rejector
- Traitor
- Unfaithful
- Neglector
- Evader
- Separater
- Dropout
- Wanderer
- Leaver
- Outcast
- Flee-er
- Loner
- Refugee (in a broader sense)
- Isolator
- Lone wolf
- Abandoning party
- Solitary
Example Sentences of Abandoner
1. The story featured a notorious abandoner.
2. An abandoner leaves others in distress.
3. He was labeled an emotional abandoner.
4. The abandoner fled before facing consequences.