Opening is a synonym of Possibility. Possibility is a synonym of Option. 
Honor is the opposite of Slight. Slight is a synonym of Weak. you would Rest because Weak. Rest is related to Regain. 
Opening <--Synonym--> Possibility <--Synonym--> Option 
Honor <--Antonym--> Slight <--Synonym--> Weak <--MotivatedByGoal-- Rest <--RelatedTo--> Regain 