A person who suddenly stops communicating with someone they were dating without any explanation or goodbye.
From 'ghost' + '-er' agent suffix. Emerged alongside 'ghosting' in internet dating culture around 2010s, creating a new word for a modern social behavior.
The creation of 'ghoster' as a noun shows how new technologies create new social roles and new vocabulary—we needed a word for a behavior that was impossible before smartphones and apps made instant communication so easy.
Complete word intelligence in one call. Free tier — 50 lookups/day.