Dungeons in Black Desert Online are confined (but not instanced) areas of the game world with high level content designed to be played by groups of players or player characters with extremely high AP and DP.
Will black desert get dungeons?
Pearl Abyss revealed this week that they'll be adding a new massive dungeon to Black Desert Online with the introduction of Atoraxxion.
Is BDO a grind game?
BDO is grind in many ways. Once you get to level 61, getting small gains of experience can take literally hours of doing nothing but killing mobs. When most people talk about it being a grind, this is what they are saying. At max levels, there aren't quests or dungeons or raid content.