How would you say well done in Irish Gaelic?

There isn't a single perfect equivalent of "well done" in Irish Gaelic that covers all situations. The best translation depends on the context. Here are a few options:

* Go hiontach! (guh HUN-tuck): This translates roughly to "fantastic!" or "wonderful!" and is a good general-purpose expression of praise. It's suitable for a job well done.

* Dea-dheant! (dja-dant): This literally translates to "well-done" and is a more formal and direct equivalent. It's suitable for accomplishments.

* Maith thú! (maw too): This translates to "Good you!" or "Well done you!" and is more informal and personal. Suitable for an individual's achievement.

* Comhghairdeas! (kum-GARE-us): This means "congratulations!" and is appropriate for significant achievements or successes.

The best choice depends on the situation and your relationship with the person you're addressing. For most situations, Go hiontach! or Dea-dheant! are safe and effective choices.