Unlike is a synonym of Unlikely. Unlikely is the opposite of Expected. Expected is the opposite of Odd. Odd is the opposite of Common. 
Age is related to History. History is related to Boring. Boring is related to Poetry. 
Unlike <--Synonym--> Unlikely <--Antonym--> Expected <--Antonym--> Odd <--Antonym--> Common 
Age <--RelatedTo--> History <--RelatedTo--> Boring <--RelatedTo--> Poetry 