What does "not done" mean?

Socially unacceptable, as:; Constituting a faux pas.

What is a synonym for "not done"?

Common synonyms include: aberrant, abnormal, abominable, atrocious, beat, bohemian.

adj

adj ·Uncommon ·Advanced level

Adjective

1
Socially unacceptable, as:; Constituting a faux pas. not-comparable
2
Socially unacceptable, as:; Morphologically or grammatically allowable but unidiomatic. not-comparable
"See also: accidental gap"