noun, na-adjective
refined taste; good taste; stylish
Wasei-eigo from 'high sense'. Describes a person or thing with sophisticated, elegant, or fashionable taste. Often used in fashion, design, and lifestyle contexts.
wasei-eigo (Japanese-coined English), from high sense
彼女の服装はいつもハイセンスだ。
Her outfits are always stylish.
この部屋のインテリアはとてもハイセンスですね。
The interior design of this room is very tasteful, isn't it?