noun-modifying (irregular)
on-the-fly
Loanword from English, used prenominally to describe something done quickly, without prior planning, or during operation. Common in IT and casual contexts.
オンザフライの翻訳機能が便利だ。
The on-the-fly translation feature is convenient.
彼はオンザフライで問題を解決した。
He solved the problem on the fly.