непристо́йный — meaning in English

nepristoynyy

English meaning

coarse adj Rough in texture rather than smooth.
filthy adj Extremely dirty.
foul adj Dirty, disgusting, or unpleasant, especially in smell or taste.
immodest adj Behaving or dressing in a way that shows no modesty, without any shame.
improper adj Not suitable, appropriate, or correct for the situation.
indecent adj Offensive to accepted standards of modesty or good taste.
ithyphallic adj Relating to the erect phallus symbol carried in ancient processions honouring Bacchus.
luscious adj Richly sweet, juicy, and delicious.
nasty adj Unpleasant, unkind, or spiteful, especially in how someone treats others.
obscene adjective Offensive to accepted standards of decency, often in a sexual way.
ribald adj Crude, vulgar or indecent in a way meant to amuse; treating sexual topics in a disrespectful, cheeky manner.
salacious adj Deliberately focused on sex in a way that feels crude, gossipy, or designed to titillate rather than inform.
saucy adj Cheeky or disrespectful in a way that comes across as playful or amusing rather than genuinely rude.
scurrilous adj Describes someone who is rude and abusive in the way they speak.
shocking adj Extremely surprising, upsetting, or disturbing.
smutty adj Dirty and blackened with grime.
unclean adj Dirty or covered in filth.
unseemly adj Not fitting proper standards of behaviour or decorum; improper.
vulgar adj Crude, tasteless, or offensive, especially in speech or behaviour.

непристо́йный is used for these senses in English:

coarse With a rough texture; not smooth.
filthy Obscene or offensive.
foul (of words or a way of speaking) Obscene, vulgar or abusive.
immodest Without customary restraint or modesty of expression; shameless.
improper Not in keeping with conventional mores or good manners; indecent or immodest.
indecent Offensive to good taste.
ithyphallic (by extension) Lascivious, obscene.
luscious Obscene.