an acquired habit or tendency in one's character that is so deeply ingrained as to appear automatic: Neatness is second nature to him.
[ 1655-65 ]
an acquired habit or tendency in one's character that is so deeply ingrained as to appear automatic: Neatness is second nature to him.
[ 1655-65 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012