* Masama (pronounced mah-sah-mah): This is the most general term for "bad" or "evil," and can also be used for something unpleasant or distasteful.
* Marumi (pronounced mah-roo-mee): This word specifically means "dirty" or "filthy," and can be used for something physically unpleasant.
* Kabastusan (pronounced kah-bah-stoo-san): This word means "rudeness" or "impoliteness," and can be used for someone's behavior that is considered nasty.
* Malas (pronounced mah-las): This word means "unlucky" or "bad luck," and can be used to describe something that is unpleasant or unfortunate.
Example sentences:
* Masama ang amoy ng pagkain. (The food smells bad.)
* Marumi ang banyo. (The bathroom is dirty.)
* Kabastusan ang sinabi niya. (What he said was rude.)
* Malas naman ang nangyari sa akin. (What happened to me was unfortunate.)
It's important to note that the best translation will depend on the specific context. You should consider what specific meaning of "nasty" you are trying to convey.