noun
[ U ] second nature (to sb) (to do sth) something that you do very easily and naturally, because it is part of your character or you have done it so many times
noun
[ U ] second nature (to sb) (to do sth) something that you do very easily and naturally, because it is part of your character or you have done it so many times
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005