General opposites:
* Diligent: This emphasizes careful and persistent work.
* Industrious: This focuses on hard work and productivity.
* Hardworking: This is a straightforward way to describe someone who puts in a lot of effort.
* Energetic: This describes someone with high levels of physical or mental energy.
* Active: This implies someone who is busy and engaged.
* Productive: This emphasizes the creation of results.
More specific opposites:
* Ambitious: This describes someone who is driven to achieve goals.
* Motivated: This refers to someone who is inspired to take action.
* Dedicated: This implies a commitment to a task or cause.
* Enthusiastic: This describes someone who is passionate and excited.
* Vigorous: This emphasizes strong energy and effort.
The best word to use will depend on the specific context.