also: リースナブル
na-adjective
reasonable; affordable; fair
Primarily used for prices, fees, and rates that are not too expensive. Very common in everyday shopping and service contexts.
このレストランは値段がリーズナブルで、味も良い。
This restaurant has reasonable prices and the food is good.
もっとリーズナブルなプランはあります
Do you have a more affordable plan?
na-adjective
reasonable; sensible; appropriate
Rare use for judgments, policies, or responses that are logical and fair. In modern Japanese, 妥当な or 理にかなった are more common for this meaning.
彼の提案はリーズナブルだと思う。
I think his proposal is reasonable.