in any case; no matter what; under any circumstances
A fixed expression meaning 'regardless of the situation' or 'whatever happens'. Often used in formal or emphatic contexts.
In any case, you must follow the rules.
Under no circumstances should you tell a lie.
More casual and conversational than いかなる場合でも, which is formal and emphatic.
Similar meaning but emphasizes 'at any time' rather than 'in any situation'.
Standard kana spelling; the kanji form 如何なる場合でも is also used but less common.
Kanji spelling using 如何; more formal or literary, but still encountered.
Compound of いかなる (formal/literary adnominal form of いか, 'how') + 場合 (situation) + でも (even if). The phrase is a fixed formal expression.