inveterate
🇺🇸
/ɪnˈvetərət/
🇬🇧
/ɪnˈvetərət/
adjective
R
someone who always does something and probably won't stop
She's an inveterate reader, always found with a book in hand.
彼女は根っからの読書家で、いつも手に本を持っています。
R
feeling or doing something for a long time and not likely to change
His inveterate optimism keeps him going, even in tough times.
彼の根深い楽観主義が、厳しい時期であっても彼を前進させ続けます。
translation
根深い