Frequent is the opposite of Secular. Secular is the opposite of Music. 
Carrot is a type of Root. Carrot is related to Vegetable. Vegetable is related to Tomato. 
Frequent <--Antonym--> Secular <--Antonym--> Music 
Root <--IsA-- Carrot <--RelatedTo--> Vegetable <--RelatedTo--> Tomato 