Alterableness refers to the ability to be changed or modified. Synonyms for this word include adaptability, malleability, flexibility, variability, modifiability, and adjustability. These terms imply the ability to change or modify something, whether it's an object or a situation. Adaptability suggests a capacity to adjust to new surroundings or circumstances. Malleability implies the ability to be shaped or molded into a different form. Flexibility means the capacity to bend without breaking, while variability suggests the ability to change in different ways. Modifiability implies the potential to be altered or revised, while adjustability suggests the ability to be fine-tuned or calibrated. These various synonyms capture the essence of alterableness, and provide different shades of meaning for this important concept.