challenge

難題、挑戦

取り組むのに努力や能力、勇気が必要な難しいこと。

やさしい英語で： Something difficult that requires effort, skill, or courage to do.

• This puzzle is a challenge.
• Starting a new job brings many challenges.
• Are you ready for the challenge of living abroad?

使い方： the challenge of doing something (She enjoys the challenge of learning a new language.); a challenge for someone (The long climb was a challenge for everyone.)

類義語： test, difficult task

よく使う表現： face a challenge, meet a challenge, major challenge

挑戦、挑戦状

相手に競争や戦いを申し込むこと。

やさしい英語で： An invitation to compete against someone or fight them.

• He accepted my challenge.
• She issued a challenge to the chess champion.
• They refused his challenge to a public debate.

使い方： a challenge to do something (He accepted her challenge to race across the field.); a challenge to someone (The champion issued a challenge to all his rivals.)

類義語： dare

よく使う表現： accept a challenge, issue a challenge, challenge to someone

挑戦

誰かを倒したり、その力や支配を弱めたりする試み。

やさしい英語で： An attempt to defeat someone or weaken their power or control.

• The strike presents a challenge to government power.
• She mounted a challenge to the party leader.
• His challenge to the throne failed.

使い方： challenge to something (The protest was a challenge to his leadership.)

類義語： opposition

よく使う表現： challenge to authority, mount a challenge

忌避

不公平や職務上の支障を理由に、裁判官などを外すよう求めること。

やさしい英語で： A legal request to remove a judge or similar official because they may be unfair or unable to serve.

• The lawyer filed a challenge to the judge.
• Their challenge alleged that the arbitrator was biased.
• The court heard two challenges based on conflicts of interest.

使い方： challenge to someone (The court rejected the challenge to the arbitrator.)

類義語： recusal request

よく使う表現： challenge to someone, challenge of someone

試す

難しいことに対処するため、人に能力や努力を求める。

やさしい英語で： To make someone use their skills or effort to deal with something difficult.

• This puzzle will challenge you.
• The course challenged even the strongest students.
• Her new job challenges her technical skills.

類義語： test, stretch

よく使う表現： challenge someone, challenge someone intellectually

疑問視する、異議を唱える

あることが間違いや不公平、事実でない可能性を指摘する。

やさしい英語で： To say that something may be wrong, unfair, or untrue.

• She challenged the decision.
• The lawyer challenged his account of the accident.
• These findings challenge our assumptions about sleep.

類義語： question, dispute, contest

反対語： accept

よく使う表現： challenge a decision, challenge something in, challenge an assumption, challenge a belief

挑む

相手に自分との競争や戦いを申し込む。

やさしい英語で： To invite someone to compete or fight against you.

• I challenge you to a game of chess.
• He challenged his brother to a race.
• Who dared to challenge the champion?

使い方： challenge someone to something (Lena challenged me to a race.)

よく使う表現： challenge someone to, challenge a rival