How to say "challenging" in Japanese

Choosing the right word
  • noun, suru verb, intransitive verbCovers the act of taking on or attempting a challenge, including challenging someone to a contest. It names the attempt itself rather than describing a task as challenging.
    テニスにチャレンジすれば?↗
    Why don't you give tennis a try?
  • prenominal modifierThe direct loanword for describing a task or problem as challenging in the sense of difficult but stimulating. Note that it is less common than its English source might suggest.
  • 誰何すいか
    noun, suru verb, transitive verbThis is almost never the word you want for 'challenging' as in difficult. It means challenging an unknown person, that is, demanding to know who someone is, as a guard might.
    いきなり本人ほんにんに誰何すいかするのも無粋ぶすいと考かんがえました。↗
    I thought it would be boorish to challenge his identity without warning.
  • 挑戦的ちょうせんてき
    na-adjectiveCovers 'challenging' in the sense of defiant, provocative, or aggressive, describing an attitude or behavior that confronts or invites confrontation. It is less common and quite different from the 'difficult task' sense.
    彼女かのじょは挑戦ちょうせん的てきな態度たいどで両手りょうてを腰こしに当あてて立たっていた。↗
    She stood defiantly with arms akimbo.

Use 「チャレンジング」 for a difficult but interesting task, 「チャレンジ」 for the act of taking on a challenge, 挑戦的 for defiant or provocative behavior, and 誰何 only for challenging a person's identity.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

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