automaticquitter

noun
UK /ˌɔːtəˈmætɪk ˈkwɪtə/
US /ˌɔːtəˈmætɪk ˈkwɪtər/

A person who gives up on things without even thinking about it.

My little brother is such an automaticquitter that he stops playing any game the moment he loses.


OTHER MEANINGS

2. A machine or program that stops working on its own without being told to.

The old coffee maker is an automaticquitter—it shuts off halfway through brewing.

3. Someone who leaves a team or activity instantly when things get hard.

The coach called him an automaticquitter after he walked off the field at the first sign of rain.

4. A habit of abandoning tasks so quickly that it seems automatic.

Her automaticquitter attitude made it hard for her to finish any project.