IPA: /ˈstaɪləs/
KK: /ˈstaɪləs/
Not having a particular style or lacking elegance and flair.
The room felt styleless, with plain furniture and no decorations.
Comparative: more styleless
Superlative: most styleless
Styleless → It is formed from "style" (from Old French *estile*, meaning a manner of doing something) and "-less" (meaning without). The word "styleless" means lacking a particular manner or flair in appearance or presentation.
Think of 'style' as a way of doing things, and remember that 'styleless' means without a particular way or flair.