The two software systems were incompatible, so the engineers had to write a custom interface to allow them to share information.
这两个软件系统不兼容，因此工程师不得不编写自定义接口让它们共享信息。
Which choice best defines “incompatible”?
B — Not able to exist or work with another person or thing because of basic differences. “incompatible” means not able to exist or work with another person or thing because of basic differences.
Which word means “not able to exist or work with another person or thing because of basic differences”?
A — incompatible. “incompatible” means not able to exist or work with another person or thing because of basic differences.
incompatible — not able to exist or work with another person or thing because of basic differences. In Chinese: 不兼容的, 不相容的.
incompatible is pronounced /ɪnˈkɒmpətəbl/.
The two software systems were incompatible, so the engineers had to write a custom interface to allow them to share information. (这两个软件系统不兼容，因此工程师不得不编写自定义接口让它们共享信息。)
conflicting, mismatched, irreconcilable — all close in meaning to incompatible (not able to exist or work with another person or thing because of basic differences).
compatible, harmonious — each the opposite of incompatible (not able to exist or work with another person or thing because of basic differences).
Yes. incompatible is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
in-(negative) + compatible(compatible) → incompatible.