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"incompatible" is also used as a crossword clue. If that's what you saw, the answer is often conflicting (11 letters).
Definitions
Unable to work together, agree, or exist side by side.
Word origin
Borrowed from French incompatible.
Used in a sentence
“My phone is incompatible with the latest version of this app.”
“Courts of equity are in many instances so nice and intricate, that they are incompatible with the genius of trials by jury.”
“"You did not visit High Barn?" "Oh no." "But there was no particular reason why you should not?" "Why do you ask me that?" she demanded quickly, and in a tone that was quite incompatible with the simple inquiry.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Bad match”12 letters
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