nasty
US /ˈnæs.ti/
UK /ˈnæs.ti/

1.
unpleasant to the senses; disgusting
:
•
There's a nasty smell coming from the drains.
•
The food tasted really nasty.
2.
very bad or unpleasant
:
•
He had a nasty fall and broke his arm.
•
The weather turned nasty, with heavy rain and strong winds.