Adequate is the opposite of Bad. Bad is the opposite of True. True is similar to Sure. Sure is related to Promise. 
Body is related to Elbow. Elbow is related to Ankle. 
Adequate <--Antonym--> Bad <--Antonym--> True <--SimilarTo--> Sure <--RelatedTo--> Promise 
Body <--RelatedTo--> Elbow <--RelatedTo--> Ankle 