General Disgust:
* Ffrewyll: This is a common and straightforward word for "disgusting."
* Anffurfiol: This translates to "unpleasant" or "offensive" and can also be used for disgust.
Strong Disgust:
* Cas beth! This literally means "What a thing!" but is used to express strong disgust.
* Rhyfeddol: This word means "abhorrent" or "detestable" and conveys a deeper sense of disgust.
* Chwerthinllyd: This word means "ridiculous" and can be used to express disgust at something absurd.
Specific Situations:
* Rhywbeth yn peri dicter: This translates to "something that makes you angry," and can be used for disgust caused by something offensive or immoral.
* Rhywbeth yn peri diflastod: This translates to "something that makes you bored," and can be used for disgust caused by something dull or uninteresting.
The best translation for "disgusting" in Welsh will depend on the specific situation and the desired level of intensity.