High is a synonym of Extreme. Extreme is the opposite of Reasonable. Reasonable is related to Rational. 
Crowd is related to Multiple. Multiple is related to Double. Double is related to Jump. Burst is a type of Jump. 
High <--Synonym--> Extreme <--Antonym--> Reasonable <--RelatedTo--> Rational 
Crowd <--RelatedTo--> Multiple <--RelatedTo--> Double <--RelatedTo--> Jump <--IsA-- Burst 