ENGLISH
REFERENCE

inscrutable

adj.
US //ˌɪnsˈkɹutəbəɫ// UK //ɪnskɹˈuːtəbəl// in·scrutable
Synonyms
Origin

Borrowed into late Middle English from Late Latin īnscrūtābilis, from in- (“not”) + scrūtō (“to examine”), corresponding to in- + scrutable

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