Denshi Jisho — Online Japanese dictionary

Found 4 sentences.

臨機応変処置取る Rise to the occasion.
まさに臨機応変対応見事いうべき He handled things wonderfully, playing it by ear the whole way. I have to say he did an excellent job.
何か実際起これば臨機応変やる If something does happen, I'll just play it by ear.
面接臨機応変答えなくてならないしょう。 You'll have to play it by ear at the interview.