Loyal is the opposite of Affair. Affair is related to Have. Have is related to Could. Could is etymologically related to Will. 
Modern is a different concept from Historical. Historical is the opposite of Expected. Expected is the opposite of Shock. Shock is related to Unexpected. 
Loyal <--Antonym--> Affair <--RelatedTo--> Have <--RelatedTo--> Could --EtymologicallyRelatedTo--> Will 
Modern <--DistinctFrom--> Historical <--Antonym--> Expected <--Antonym--> Shock <--RelatedTo--> Unexpected 