Expert
Expert adjective - Having or showing exceptional knowledge, experience, or skill in a field of endeavor.
Usage example: people interested in laser eye surgery are advised to seek out an expert practitioner
Effectual and expert are semantically related. In some cases you can use "Effectual" instead an adjective "Expert".
Cite this Source
Effectual and Expert. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/expert/effectual
Expert & Effectual. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/expert/effectual>.
Effectual or Expert. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/expert/effectual.
Google Ngram Viewer shows how "expert" and "effectual" have occurred on timeline