いかん次第
Depending on / according to how … turns out → the final result is strongly determined by one key factor
N1
Meaning
Depending on / according to how … turns out → the final result is strongly determined by one key factor
Formation
Formal
Noun + いかん次第で + Result
Noun + いかん次第では + Result
Explanation
いかん次第 expresses that one specific factor has decisive power over the outcome.
🔸 いかん次第 emphasizes “decisiveness”
Compared to general “depending on” expressions, this grammar highlights that:
the factor is crucial
the outcome can change significantly
the situation is often serious or high-stakes
The noun before いかん次第 usually refers to:
decisions
responses
results
methods
attitudes
handling of a situation
Important nuance:
Strongly formal and written
Often implies responsibility or importance
Common in announcements, policies, business writing.