тоска́
In English A deep, soulful melancholy; a feeling of wistful longing; a sense of spiritual anguish.
A profound feeling of melancholic sadness, longing, and spiritual emptiness, often caused by a sense of loss or incompleteness.
Example
"Меня́ охвати́ла тоска́ по уше́дшему ле́ту."
