0 past simple and past participle of frown --
1 to bring your eyebrows together so that there are lines on your face above your eyes to show that you are annoyed or worried: --
He frowned as he read the instructions, as if puzzled.
But as here everything is illegal, and frowned upon, well we just take our money and spend it as we please.
Functional programmers love referential transparency - the ability to substitute equals for equals - which is why assignments are frowned upon.
Any violation of the ptnghuà-only rule of speaking may be frowned upon, but it has never been enforced with harsh punitive measures.
As obvious as it may seem, this explication of reasonable doubt has been frequently frowned upon and sometimes explicitly repudiated by appellate courts.
Excess consumption, if not portrayed for comic purposes, is frowned upon.
I used localist representations, as they were not frowned upon at that time.
The professor frowned at the technicians of the physicist who were wearing glasses.
Such sartorial romanticism, verging on circus costume or military display, was frowned upon by the smart set.