1.  ampleness(n = noun.attribute) - the property of being more than sufficient; comfortable sufficiency; "the ampleness of her servings more than satisfied his hunger"
is a kind of adequacy, sufficiency
Derived forms adjective ample₂, adjective ample₁

2.  ampleness(n = noun.attribute) - the property of impressive largeness in size; "he admired the ampleness of its proportions"
is a kind of bigness, largeness
Derived form adjective ample₃

   The state or quality of being ample; largeness; fullness; completeness. [1913 Webster]