• Antithetical

    Full definition of antithetical

    Adjective

    antithetical

    1. Pertaining to antithesis, or opposition of words and sentiments; containing, or of the nature of, antithesis; contrasted.His wrong-headed beliefs are antithetical to everything we stand for as a community.This is precisely why insistence on relative truth is antithetical to critical thinking.
    © Wiktionary