IPA: //ˈræɡtaɪm//
KK: /ˈræɡtaɪm/
A type of music that features a lively rhythm with a strong emphasis on off-beat notes, often played on the piano.
Scott Joplin is one of the most famous composers of ragtime music.
Ragtime is formed from "rag" (from the slang term meaning to tease or make fun of, possibly derived from the word 'rag', meaning a torn piece of cloth) and "time" (meaning a musical period or style). The word "ragtime" refers to a style of music characterized by its syncopated rhythm, often associated with playful or lively themes.
Think of the playful teasing ('rag') in the lively music style ('time') — that's why ragtime is a fun and upbeat musical genre.