perfected, honed, polished, refined, excelled at, fully learned, fully understood, become proficient in, become adept at, conquered, nailed, aced
skilled - proficient - knowledgeable - well-informed - expert - adept - experienced - practised - accomplished - well-versed
The adjective "versed" describes someone who is very knowledgeable or experienced in a particular subject, field, or activity. A person who is versed has gained familiarity and confidence through study, practice, or long-term exposure. The term often appears in formal or professional contexts, such as "well versed in contract law" or "versed in classical music." It implies more than basic understanding, suggesting a solid, reliable command of the topic. Being versed can apply to technical skills, cultural areas, languages, or any domain where expertise and practical understanding are important.