Secondary is a synonym of Minor. Minor is a different concept from Critical. Critical is a synonym of Crucial. Crucial is a synonym of Excellent. 
Bad is related to Sin. Sin is related to Abstract. Abstract is a synonym of Isolate. 
Secondary <--Synonym--> Minor <--DistinctFrom--> Critical <--Synonym--> Crucial <--Synonym--> Excellent 
Bad <--RelatedTo--> Sin <--RelatedTo--> Abstract <--Synonym--> Isolate 