IPA: /ˈstʌf.ləs/
KK: /ˈstʌfləs/
Having no unnecessary items or things; free from clutter.
The stuffless room felt more spacious and peaceful.
Comparative: stuffless
Superlative: stuffless
Stuffless → It is formed from "stuff" (from Old French *estofe*, meaning material or substance) and "-less" (meaning without). The word "stuffless" means without material or substance.
Think of being 'without' ('-less') any 'material' ('stuff') — that's what stuffless means.