pensiveness

Noun

uncountable

A thoughtful or reflective state, especially if sad or melancholic.

Japanese Meaning

物思い、内省的で、どこか哀愁を帯びた思索状態を表す / 思いに沈む、憂いを含んだ内面的な感慨の状態

She sat by the rain-streaked window, her pensiveness deepening as the afternoon slipped away.

彼女は雨粒の跡がついた窓辺に座り、午後が過ぎ去るにつれて物思いが深くなっていった。

Sense（1）

A thoughtful or reflective state, especially if sad or melancholic.

We left quietly so as not to disturb the widow's pensiveness.