“〜ni kakawaru”: To Affect / Be a Matter of 〜 (a matter of grave importance) [JLPT N2]

Content by NTJ Kuma · Nihongo to Japan editorial team · Updated July 27, 2026

「命にかかわる問題」 — it bears on something grave: life, honour, trust (≠ にかかわらず).

「それは命にかかわる問題だ」 — a matter of life, no small thing

A doctor says gravely 「早く治療しないと、命にかかわる」 (if you don't treat it soon, it could be a matter of life) — 「〜にかかわる」 = be a matter of ～, concern ～, meaning something has a major impact on an important thing (life, honor, credit, the future). What precedes is mostly “an important thing that can't go wrong.” This guide covers its “major impact” feel and the slightly-different but completely different 「にかかわらず (regardless)」 (see 〈にかかわらず〉).

Core: a major impact on an important thing

「noun ＋ にかかわる」 means “concern ～, be a matter of ～ (having a major impact on this important thing)”:

• それは命にかかわる問題だ (that's a matter of life and death).
• 会社の信用にかかわる (it concerns the company's credit).
• 進退にかかわる重大な決定 (a major decision bearing on one's position).

Feel: “be a matter of ～, concern ～” — the core is “(having a major impact on) an important thing,” what precedes being mostly 命・名誉・信用・将来・生死・体面 — “important things that can't slip,” with the sense of “no small matter, major impact.” To modify a noun, use 「にかかわる ＋ noun」 (命にかかわる病気). (It can also mean the more neutral “be involved in, related to,” e.g. 「教育にかかわる仕事.」)

Attachment & forms

Example sentences

• タバコの吸いすぎは、健康にかかわる。(Smoking too much affects your health.)
• そんなミスをしたら、会社の信用にかかわる。(Making such a mistake would affect the company's credit.)
• これは、私のプライドにかかわる問題だ。(This is a matter of my pride.)
• 医療は、人の生死にかかわる仕事だ。(Medicine is work that bears on people's life and death.)
• 個人情報の漏洩は、信頼にかかわる深刻な事態だ。(A leak of personal data is a serious matter of trust.)

⚠️ Common mistakes to avoid

① What precedes is mostly ‘命・名誉・信用・将来' etc. — important things, expressing ‘major impact.' When 「にかかわる」 means “concern, be a matter of,” what precedes is mostly important things that can't go wrong — 命 (life)・名誉 (honor)・信用 (credit)・将来 (future)・生死・体面・プライド・評判. It means “having a major impact on this important thing, being a matter of it,” with the sense of “no small matter, major impact”: 命にかかわる (a matter of life), 信用にかかわる (concerns credit). So it's mostly for stressing the gravity, importance of something (this is no small thing, it affects ～). Test: is the preceding an “important, weighty thing (life/honor/credit…),” wanting to stress “major impact”? Yes → にかかわる applies. (Plain “about a topic” uses 「に関して,」 not にかかわる.)

② 「にかかわる (a matter of)」 ≠ 「にかかわらず (regardless)」: slightly different, completely different meaning. This is the most easily-confused pair (see 〈にかかわらず〉). 「〜にかかわる」 = be a matter of ～, concern ～ (major impact on an important thing): 命にかかわる (a matter of life). 「〜にかかわらず」 = regardless of ～, no matter ～ (unaffected by a condition): 年齢にかかわらず (regardless of age), 天候にかかわらず (regardless of weather). Difference: 「にかかわる」 is “concern, be a matter of (major impact)”; 「にかかわらず」 is “regardless of, unaffected by (unrelated)” — one “deeply related,” one “unrelated/unaffected,” nearly opposite meanings! Test: to say “be a matter of ～, concern ～ (major impact)” → にかかわる; to say “regardless of ～, no matter ～ (unaffected)” → にかかわらず (see 〈にかかわらず〉). One 「らず」 apart, worlds apart — don't confuse them. (Also 「にもかかわらず = despite」 is an adversative, don't mix that either.)

③ It can also neutrally mean ‘involve, be related to.' Besides “concern (major impact),” 「にかかわる」 can more neutrally mean “involve, be related to, take part in”: 教育にかかわる仕事 (work related to education), 環境問題にかかわる活動 (activities involving environmental issues), その事件にかかわった人物 (a person involved in that incident). Here it means “be connected to ～, take part,” not necessarily with the gravity of “major impact,” more objective. Test: preceding “命・信用” etc. (important things), stressing serious impact → a matter of (major impact); preceding “教育・環境・事件” etc. (fields/matters), expressing connection/involvement → involve/related (neutral). Both senses use 「にかかわる,」 told apart by context and the preceding word.

🔄 Nuance & comparison: にかかわる／に関する／にかかわらず／に及ぶ

💡 The one thing to remember

「〜にかかわる」 = be a matter of ～, concern ～ (major impact on an important thing) — three points: ① precedes ‘命・名誉・信用・将来' etc. — important things — 命にかかわる (a matter of life), 信用にかかわる (concerns credit), stressing “no small matter, major impact”; ② 「にかかわる (a matter of)」 ≠ 「にかかわらず (regardless)」 — the key trap: かかわる = a matter of/deeply related, かかわらず = regardless/unaffected (nearly opposite, see 〈にかかわらず〉), one 「らず」 apart, don't confuse; ③ can also neutrally mean “involve, be related to” (教育にかかわる仕事). This pattern suits stressing something's gravity — 「これは命にかかわる (this is a matter of life)」「信用にかかわる問題だ (a matter of credit)」 — instantly foregrounding “this is no small thing, major impact.”

❓ Quick FAQ

Q: 「にかかわる」 and 「にかかわらず」 differ slightly — do they mean the same?

Nearly opposite, must be separated (a classic look-alike trap, see 〈にかかわらず〉). 「〜にかかわる」 = be a matter of ～, concern ～ (major impact on an important thing): means something has a major impact on an important thing, is closely related to it, preceding 命・名誉・信用・将来: 早く手術しないと命にかかわる (if you don't operate soon, it's a matter of life — life gravely affected), そのミスは会社の信用にかかわる (that error concerns the company's credit). It's “deeply related, a matter of.” 「〜にかかわらず」 = regardless of ～, no matter ～ (unaffected by a condition): means “whichever case the first is, it doesn't affect the result,” preceding an opposing/range word: 年齢にかかわらず、誰でも参加できる (regardless of age, anyone can join), 天候にかかわらず決行する (proceed regardless of weather). It's “regardless of, unaffected by (unrelated).” Difference: 「にかかわる」 is “a matter of, deeply related (closely connected)”; 「にかかわらず」 is “regardless, unaffected (unrelated)” — one “closely related,” one “unrelated,” opposite meanings! Test: to say “be a matter of ～, concern ～ (major impact)” → にかかわる; to say “regardless of ～, no matter ～ (unaffected)” → にかかわらず. One 「らず」 (negative) apart, worlds apart. E.g. 「名誉にかかわる (a matter of honor — related)」 uses にかかわる; 「性別にかかわらず (regardless of gender — unaffected)」 uses にかかわらず. Also 「にもかかわらず = despite」 (adversative) is different again — don't mix it with these two. So seeing the 「かかわる/かからず」 series, first separate: かかわる = a matter of (related), かかわらず = regardless (unaffected), にもかかわらず = despite (adversative).

Q: What precedes 「にかかわる」? Does it always have to be a grave word like 「命」?

Not always, but for ‘major impact (a matter of),' it mostly precedes important, grave things. 「にかかわる」 has two uses, with different preceding words: ① for ‘concern, major impact' — precedes important things that can't go wrong: 命 (life)・生死・名誉 (honor)・信用 (credit)・信頼・将来・進退 (one's position)・体面・プライド・評判・存続, all “important things that become a big deal once affected”: 命にかかわる病気 (a life-threatening illness), 会社の存続にかかわる問題 (a matter of the company's survival), 名誉にかかわる (a matter of honor). Here it stresses “major impact on this important thing, no small matter.” ② for ‘involve, be related to, take part' — precedes fields, matters etc. (more neutral): 教育・環境・医療・研究・事件・プロジェクト and other fields or matters: 教育にかかわる仕事 (work related to education), その事件にかかわった人 (a person involved in that incident), 環境保護にかかわる活動 (activities involving environmental protection). Here it more neutrally means “be connected to ～, take part,” not necessarily grave. So the test: preceding ‘命・信用・名誉' etc. (important things), wanting to stress ‘major impact, a matter of' → use にかかわる (grave sense); preceding ‘教育・環境・事件' etc. (fields/matters), expressing ‘involve, related' → also use にかかわる (neutral sense). Both senses use 「にかかわる,」 but for “a matter of (major impact),” what precedes is mostly “important, grave things” — its most tested, most typical use. To stress that something is “a big deal, major impact,” 「(important thing) にかかわる」 is forceful.

🖊️ Practice Questions (5)

Q1. 「これは社員全員の将来___大切な決定です。」(an important decision affecting all employees' futures)

(A) に関する　(B) にかかわる　(C) にかかわらず　(D) による

Q2. 「患者の命___問題なので、慎重に判断してほしい。」(a matter affecting the patient's life)

(A) にかかわる　(B) に関する　(C) にとって　(D) に対して

Q3. 「医療___問題を研究している。」(researching a major issue affecting medical care; modifying a noun)

(A) にかかわる　(B) に関して　(C) によって　(D) における

Q4. Which is appropriate for 「にかかわる」?

(A) 旅行に関する情報を集めた。

(B) この食品の衛生問題は健康にかかわる。

(C) 天気にかかわらず、外出する。

(D) 環境にかかわる趣味を持つ人は多い。

Q5. 「会社の信用___問題なので、慎重に対応してください。」

(A) に関して　(B) にかかわる　(C) にとって　(D) に対して

Answer Explanations

1. (B) にかかわる ── 「将来にかかわる大切な決定 (an important decision affecting the future)」= heavy tone/major impact → にかかわる.

2. (A) にかかわる ── 「命にかかわる問題 (a matter affecting life)」= the most typical use of にかかわる (life-and-death related).

3. (A) にかかわる ── 「医療にかかわる問題 (a problem affecting medical care)」= にかかわる modifying a noun, meaning "involving/affecting ~." (B) に関して is a conjunctive form and can't directly modify a noun (needs に関する); (C) によって (through); (D) における (in ~) differ in meaning.

4. (B) ── 「衛生問題は健康にかかわる (affects health)」= major impact → the typical use of にかかわる. (A) に関する = neutral "about"; (C) にかかわらず = regardless of (completely different); (D) 「環境にかかわる趣味 (a hobby related to the environment)」has too heavy a tone, should use に関する.

5. (B) にかかわる ── 「信用にかかわる問題 (a matter affecting reputation)」= major impact → にかかわる.