空返事 (そらへんじ) Japanese meaning | KotomoraMeanings
1
noun, noun or participle which takes 'suru'
absent-minded reply; vague response; noncommittal answer
A reply given without really listening or thinking, often just to be polite or to end the conversation. Can be used as a noun or with する.
適
当
に
空
返
事
を
し
て
しまっ
た
。
Even though I wasn't listening, I ended up giving a half-hearted response.