proficiency

熟達,熟練

proficiency の類語

skill, ability, technique, efficiency, capability, expertise, mastery, competence, know-how, capacity, know how, ingenuity, facility, resource, craft, timing, marksmanship, wit, coordination, diplomacy, seamanship, readiness, control, style, savvy, practical ability, address, technical skill, brilliance, prowess, command, competency, talent, finesse, grace, artistry, craftsmanship, workmanship, tact, dexterity, fitness, genius, faculty, technical mastery, quickness, wizardry, technical brilliance, cleverness, grip, virtuosity, resourcefulness, qualification, horsemanship, savoir-faire, art, march, science, flair, knowledge, cunning

proficiency の反意語

inability, incompetence, inefficiency, incapability

例文

• He has increased his proficiency in English greatly.
  彼は非常に英語に熟達してきた。
• Her proficiency in English rapidly improved.
  彼女は急速に英語力が伸びた。
• The letters STEP stand for the Society for Testing English Proficiency.
  ＳＴＥＰという文字は日本英語検定協会を表している。

関連語

proficient

proficiency の言い換えを探すには

proficiency（熟達）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。