adjective
uncouth
un-KOOTH/ʌnˈkuːθ/
Rude or awkward in manners or behavior.
His uncouth table manners make the other dinner guests uncomfortable.

Etymology
The original combination meant “not known,” with couth representing “known.” From “unknown” or “unfamiliar,” the word developed through “strange” to “awkward, crude,” yielding the modern judgment of someone’s manners.
In context
it was seen as uncouth, unseemly for a politician to actively campaign so instead the candidate or one of their supporters would host massive barbecues where they could make their platform known without active soliciting votes
More examples
- She considers it uncouth to interrupt someone with a loud joke.
- His uncouth remarks offend several people at the meeting.
- Despite his uncouth behavior, he means well.
Forms
uncouth · uncouther · uncouthest
uncouthness noun — The quality of having rough, awkward manners.
uncouthly adverb — In a rude or socially awkward manner.