without so much as something/as doing something

without so much as

With not even, as in She stormed out without so much as a goodbye. [Mid-1600s]
See also: much, without

without so much as something/as doing something

,

not so much as something/as doing something

used for emphasizing that somebody does not do something that you expected them to do: She took the money without so much as a thank you.He didn’t so much as look at her when she came in.
See also: much, something, without