disuse vs indifference

disuse

• The state of not being used; neglect. 

• To cease the use of. 

indifference

• The state of being indifferent. 

• Unconcerned nonchalance. 

• Unbiased impartiality. 

• Unemotional apathy. 

• Self-identity defined through the negation of difference, non-difference. 

• A lack of enthusiasm.