Reasonable; suitably priced or fair (especially about price or terms). Used as a na-adjective to say something is affordable or fair.
このホテルは設備が良くて、料金もリーズナブルだ。
This hotel has good facilities and the price is reasonable.
品質を考えれば、その商品はリーズナブルな値段だと思う。
Considering the quality, I think that product is reasonably priced.
学生向けにリーズナブルなプランを用意しています。
We offer a reasonable/affordable plan for students.