Retreat is a type of Withdrawal. Withdrawal is the opposite of Deposit. Deposit is a type of Guarantee. Guarantee is a synonym of Undertake. 
Confession is related to Propose. Propose is related to Answer. Answer is related to Dress. Dress is related to Formal. 
Retreat --IsA--> Withdrawal <--Antonym--> Deposit --IsA--> Guarantee <--Synonym--> Undertake 
Confession <--RelatedTo--> Propose <--RelatedTo--> Answer <--RelatedTo--> Dress <--RelatedTo--> Formal 