The definition of antithesis is a contrary or opposite opinion, concept, or characteristic.(noun)
An example of someone who is the antithesis of friendly is a grump.
See antithesis in Webster's New World College Dictionary
noun pl. antitheses
Origin: ME antitesis < LL antithesis < Gr < antithenai < anti-, against + tithenai, to place: see do
See antithesis in American Heritage Dictionary 4
noun pl. an·tith·e·ses (-sēzˌ)
Origin: Late Latin
Origin: , from Greek
Origin: , from antitithenai, antithe-, to oppose
Origin: : anti-, anti-
Origin: + tithenai, to set; see dhē- in Indo-European roots.
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