〜にかかわる
affecting, a matter of (life, reputation)
Noun (命, 信用, 将来, 名誉) + にかかわる
Sign up free to review this point on a spaced schedule.
にかかわる means something seriously affects something important: それは命にかかわる問題だ, "that's a matter of life and death".
The noun is usually something valuable that could be damaged: 命, 信用 ("trust, credit"), 将来, 名誉 ("honour"), 健康, 安全. The phrase often comes before 問題 or こと, and it signals high stakes.
It can also mean simply "related to, involved in": 教育にかかわる仕事, "a job in education". It's written in kana or 関わる.
Don't confuse it with にかかわらず (N2), "regardless of", which looks almost the same but means the opposite: "it doesn't matter". Also compare に関して (N3), a neutral "about, concerning".
Examples
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ことだから、慎重に対応しよう。
The company's reputation is at stake, so let's handle this carefully.
これは将来にかかわる大切な決断だ。
This is an important decision that will affect your future.
名誉にかかわる問題なので、黙っていられない。
My honour is at stake, so I can't stay silent.
将来は教育にかかわる仕事がしたい。
In the future, I'd like to work in education.