To emphasize the level of experience:
* Highly: Highly experienced
* Vastly: Vastly experienced
* Deeply: Deeply experienced
* Widely: Widely experienced
* Thoroughly: Thoroughly experienced
* Well: Well-experienced
To describe the type of experience:
* Field: Field-experienced
* Industry: Industry-experienced
* Subject-matter: Subject-matter experienced
* Practical: Practically experienced
* Real-world: Real-world experienced
To describe the effect of experience:
* Seasoned: Seasoned by experience
* Veteran: Veteran of experience
* Seasoned: Seasoned with experience
* Hardened: Hardened by experience
* Wise: Wise through experience
Other options:
* Experienced: This is the most straightforward and common option.
* Expert: This is used to describe someone who has a high level of expertise in a particular field.
Ultimately, the best prefix to use will depend on the specific context and the meaning you want to convey.