Common noun; usually uncountable but can take a plural in rare instances.
Translations
I was touched by her thoughtfulness in remembering my birthday.
Я был тронут её внимательностью, что она вспомнила о моём дне рождения.
He stared out of the window in deep thoughtfulness.
Он смотрел в окно в глубокой задумчивости.
заботливостькачество быть заботливым; менее распространённое Definitions
Considerate care or kindness shown toward others. I was touched by her thoughtfulness in remembering my birthday.
The state of being absorbed in or characterized by careful thought; deliberation. He stared out of the window in deep thoughtfulness.