Asks about manner or method; somewhat formal and often used in writing or careful speech.
I am thinking about how we should solve this problem.
Used with adjectives or verbs to ask about degree; often in rhetorical or emphatic expressions.
彼の言葉がいかに心に響いたか、言葉にできない。
I can't put into words how deeply his words touched me.
Used in the pattern いかに...も or いかに...でも to mean 'no matter how much'; formal and often literary.
いかに努力しても、結果が出ないこともある。
No matter how hard you try, sometimes you don't get results.
hey; oi
Archaic interjection used to call attention; not used in modern Japanese.
古い物語では、「いかに」と呼びかける場面がある。
In old tales, there are scenes where someone calls out 'hey!' using いかに.
He constantly thought about how he should live his life.
This incident shows just how dangerous it is.
No matter how hard I tried, the result didn't change.