IPA: /ˈkjʊərəblnəs/
KK: /ˈkjʊərəblnəs/
The quality of being able to be cured or treated successfully.
The curableness of the disease gives hope to many patients.
Curableness is formed from "cura" (from Latin, meaning care or concern) and the suffix "-able" (meaning capable of). The word refers to the quality of being capable of being cared for or treated.
Think of 'cura' meaning care, and '-able' meaning capable — this helps you remember that curableness refers to the quality of being able to be cared for.