Underhand Synonyms and Antonyms
 ŭndər-hănd  
            Marked by treachery or deceit
        
 
            (Adjective)
        
Synonyms:
 Antonyms:
 
            With the hand swung below shoulder level
        
 
            (Adverb)
        
Synonyms:
 
            Slyly and secretly; - John Donne; - C.G.Bowers
        
 
            (Adverb)
        
Synonyms:
 - underhandedly
 
Synonyms:
 
            (Noun)