incompatible

Etymology

French incompatible.

adj

1. Of two things: that cannot coexist; not congruous because of differences; unable to function together due to dissimilarities.
   My phone is incompatible with the latest version of this app.
   After the story was published, Hunter stated that the temple's executive committee informed him that such statements were incompatible with being a rabbi. 2019-2-27, Jeremy Pelzer, “Green Party presidential hopeful says he was fired as rabbi because of Israel criticism”, in cleveland.com
2. (chemistry) Incapable of being together without mutual reaction or decomposition, as certain medicines.

noun

1. (medicine, chemistry, chiefly in the plural) An incompatible substance; one of a group of things that cannot be placed or used together because of a change of chemical composition or opposing medicinal qualities.
   the incompatibles of iron
2. (philosophy) A consequent of a contrary.
   Incompatibles are consequents of contraries. For example, sleeping and waking are contraries, and snoring is associated with sleepers. So snoring and waking are incompatibles. 2004, Boethius, translated by Eleonore Stump, In Ciceronis Topica