inscrutable
$ \mathrm{inscrutable}
/ɪnˈskruːtəbl/
adjective
(especially of a person's expression)
impossible
to
understand
or
interpret
He was wearing that inscrutable look again.
Her face had become inscrutable.
inscrutable to somebody
Unfortunately, this language is largely inscrutable to non-specialists.
Word Origin
late
Middle English
: from
ecclesiastical
Latin
inscrutabilis
, from in- ‘
not
’ + scrutari ‘to
search
’ (originally ‘
sort
rubbish
’, from
scruta
‘
rubbish
’).
e.g.
/fe3hdialogue/散策・金鹿の願い The Golden Deer's Plea#63f4a699bdb0e50000bbb6e4
/fe3hdialogue/Jeritza×Constance#62e11c09bdb0e500009001d4