An i-adjective meaning striking, remarkable, or significant. It is a formal word used to emphasize a large and very noticeable degree of change, growth, or difference. It is frequently used in writing, reports, and formal speech with words like "growth" (著しい成長) or "progress" (著しい進歩). Example: "There has been a remarkable improvement in the company's performance this year."

変化や差の程度が非常に大きいことを表す、硬い表現のい形容詞。客観的な事実を述べる際によく使われる。「著しい成長」「著しい変化」のように使う。例文：「この地域の経済は、ここ数年で著しい発展を遂げた。」