For "mean" as in "unfriendly" or "nasty":
* Drwg: This is the most common and general translation.
* Anffyddlon: This means "untrustworthy" and can also convey a sense of meanness.
For "mean" as in "average":
* Cyfartalog: This is the most common word for "average."
For "mean" as in "to intend":
* Bwriadu: This means "to intend."
For "mean" as in "to imply":
* Awgrymu: This means "to suggest" or "to imply."
For "mean" as in "cruel":
* Creadur: This can mean "cruel" or "wicked."
* Call: This means "cruel" or "hard-hearted."
The best translation depends on the specific context of how you are using the word "mean."