Meaning of the word non-starter in English

What does non-starter mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

non-starter

US /nɑnˈstɑːrtər/
UK /nɒnˈstɑːtər/

Noun

a person or thing that has no chance of success or of being effective

Example:
His proposal was a complete non-starter from the beginning.
The idea of working overtime without pay is a non-starter for most employees.