na-adjective, noun
comparatively expensive; overpriced; not good value
Describes something that costs more than its quality or the market standard would suggest; often used in economic contexts or when comparing prices.
この店は量のわりに割高だ。
This restaurant is overpriced for the portion size.
輸入品はどうしても割高になる。
Imported goods inevitably end up being comparatively expensive.