antithetically

from WordNet (r) 3.0 (2006)
antithetically
    adv 1: with antithesis; in an antithetical manner
    
from The Collaborative International Dictionary of English v.0.48
Antithetically \An`ti*thet"ic*al*ly\, adv.
   By way antithesis.
   [1913 Webster] Antitoxin
    

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