何なに心ごころなく

noun

without thinking; innocently; unintentionally

Describes doing something casually, without deep thought or ulterior motive. Often used when an innocent remark or action leads to an unexpected result. Related to the adjective 何心無い.

See also: 何心ない

• 何なに心ごころなく言いった一ひと言ことが彼かれを傷きずつけてしまった。

  A casual remark I made without thinking ended up hurting him.

• 何なに心ごころなく窓まどの外そとを見みると、雪ゆきが降ふり始はじめていた。

  When I glanced out the window without any particular thought, it had started snowing.