Competitive is similar to Aggressive. Aggressive is similar to Hostile. Hostile is related to Offensive. Offensive is related to Attack. 
Worldwide is the opposite of Local. Local is related to Area. Room is a type of Area. Room is a synonym of Way. 
Competitive <--SimilarTo--> Aggressive <--SimilarTo--> Hostile <--RelatedTo--> Offensive <--RelatedTo--> Attack 
Worldwide <--Antonym--> Local <--RelatedTo--> Area <--IsA-- Room <--Synonym--> Way 