: not compatible: such as
a
: not able to exist together without trouble or conflict : not going together well
incompatible people [=people who do not get along well with each other]
Their personalities were incompatible.
incompatible colors
a policy that is incompatible with my beliefs [=that does not agree with my beliefs]
b
: not able to be used together
incompatible computer systems
incompatible drugs
This printer is incompatible with some PCs.
Cite this Entry
“Incompatible.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/incompatible. Accessed 21 Jun. 2026.
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