What is the opposite of noun lass?

The opposite of "lass" depends on the context and what aspect you're looking for the opposite of. Here are a few possibilities:

* Gender: The opposite of "lass" in terms of gender is lad.

* Age: "Lass" typically refers to a young woman. The opposite could be gentleman (for an older man) or boy (for a young man).

* Social Status: "Lass" sometimes implies a lower social standing. The opposite could be lady or gentlewoman.

It's important to consider the specific context to determine the most appropriate opposite.