Joy is a synonym of Pleasure. Pleasure is related to Happiness. Happiness is related to Glad. Glad is the opposite of Disappointed. 
Living is related to Nature. Nature is the opposite of Artificial. 
Joy <--Synonym--> Pleasure <--RelatedTo--> Happiness <--RelatedTo--> Glad <--Antonym--> Disappointed 
Living <--RelatedTo--> Nature <--Antonym--> Artificial 