mediocre; ordinary; commonplace; banal
凡庸な作品では観客の心をつかめない。
A mediocre work cannot capture the hearts of the audience.
彼は凡庸な人物に見えて実は才能豊かだ。
He looks like an ordinary person but is actually very talented.
凡庸を脱して独自の道を切り開いた。
He broke free from mediocrity and carved out his own path.