IPA: /ˈstrɪŋləs/
KK: /ˈstrɪŋləs/
Not having any strings attached or included.
The stringless kite soared high in the sky without any hindrance.
Stringless → It is formed from "string" (from Old English "streng", meaning a thin piece of material) and "-less" (meaning without). The word "stringless" means without a string or lacking a string.
Think of something that is 'without' ('-less') a 'thin piece of material' ('string'). This helps you remember that 'stringless' means lacking a string.