Japanese phrase
きっかけは思い当たりません。 ki kka ke wa omo i a ta ri ma se n
Meaning
I cannot think of anything that triggered it.
When to use it
States that no likely cause comes to mind. It is a calm way to say that nothing stands out as the reason for a problem or event.
Example dialogue
何かきっかけがあったんですか？ nan ka ki kka ke ga a tta n de su ka
Was there something that set it off?
きっかけは思い当たりません。 ki kka ke wa omo i a ta ri ma se n
I cannot think of anything that triggered it.