What is the opposite word of vague?

The opposite of vague depends on the specific context. Here are some options:

General Opposites:

* Specific

* Clear

* Precise

* Definitive

* Explicit

* Detailed

* Sharp

More Contextual Opposites:

* Direct (opposite of vague in terms of communication)

* Concrete (opposite of vague in terms of ideas or concepts)

* Well-defined (opposite of vague in terms of boundaries or limits)

The best opposite word to use will depend on the specific meaning you want to convey.