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non-extensional
non-extensional adj. 
/ˌnɒnᵻkˈstɛnʃən(ə)l/, /ˌnɒnɛkˈstɛnʃn̩(ə)l/, /ˌnɒnɛkˈstɛnʃən(ə)l/, /ˌnɑnɛkˈstɛn(t)ʃ(ə)nəl/
Brit. /ˌnɒnᵻkˈstɛnʃn̩(ə)l/
, /ˌnɒnᵻkˈstɛnʃn̩(ə)l//ˌnɒnᵻkˈstɛnʃən(ə)l//ˌnɒnɛkˈstɛnʃn̩(ə)l//ˌnɒnɛkˈstɛnʃən(ə)l/U.S. /ˌnɑnᵻkˈstɛn(t)ʃ(ə)nəl/
, /ˌnɑnᵻkˈstɛn(t)ʃ(ə)nəl//ˌnɑnɛkˈstɛn(t)ʃ(ə)nəl/ΚΠ
1891 Philos. Trans. 1890 (Royal Soc.) A. 181 462 The vibrations would cease to be non-extensional if the constraints were removed.
1955 A. N. Prior Formal Logic 269 Modal operators (and non-extensional operators generally).
1998 Philos. Rev. 107 556 By ‘simple sentence’, I mean a sentence that contains no modal, attitudinal, quotational, or other non-extensional contexts.
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