Refuse is the opposite of Offer. Offer is related to Suggestion. Suggestion is related to Advise. 
Risky is related to Danger. Danger is related to Situation. Situation is a synonym of Position. Pitcher is a type of Position. 
Refuse <--Antonym--> Offer <--RelatedTo--> Suggestion <--RelatedTo--> Advise 
Risky <--RelatedTo--> Danger <--RelatedTo--> Situation <--Synonym--> Position <--IsA-- Pitcher 