2
fine
2
good at(verb, expression, phrasal verb, tough, skill)
2
graduate(authority, master, specialist, professional)
2
honorable
2
learned(adjective, keen, smart, familiar, intelligent)
2
licensed(adjective, suitable, adequate, skilled, competent)
2
mature(knowledgeable, skilled, qualified)
2
matured(knowledgeable, skilled, qualified)
2
maven(noun, authority, expert, genius, doctor)
2
old(adjective, smart, knowledgeable, practical, expert)
2
old hand(noun, expression, adjective, good, authority)
2
on the ball(expression, adjective, idiom, good, smart)
2
politic(cunning, refined, sly, treacherous, crafty)
2
refined(tactful, diplomatic)
2
sage(noun, adjective, authority, expert, genius)
2
savant(noun, authority, expert, genius, doctor)
2
secure
2
sound
2
suitable(adjective, decent, knowledgeable, adequate, competent)
2
superhero(master, expert, adept, professional)
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APASmart Define. (2015). proficient thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/proficient/thesaurus/synonyms
ChicagoSmart Define. 2015. "proficient thesaurus" https://smartdefine.org/proficient/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, proficient thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/proficient/thesaurus/synonyms>.
MLASmart Define. "proficient thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/proficient/thesaurus/synonyms>