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insubstantial (adj.)
[insubstantial 词源字典]
c. 1600, from Medieval Latin
insubstantialis
, from
in-
"not" (see
in-
(1)) +
substantialis
(see
substantial
). Related:
Insubstantially
.
[insubstantial etymology, insubstantial origin, 英语词源]