without compatibility

able to exist and perform in harmonious or agreeable combination

the quality of being unable to exist or work in congenial combination

not suitable to your tastes or needs

not in harmony

either not matched or unsuitably matched

unlike in nature or quality or form or degree

incapable of harmonious association

sharply and harshly discordant

unable for both to exist or be true at the same time

used of plant stock or scions; incapable of being grafted