inveterate inveterate /ˌɪnˈvɛtɝət/

adjective

1. Habitual  ( chronic , inveterate )
   habitual
    A chronic smoker
   a chronic smoker
   

adverb

1. In a habitual and longstanding manner  ( chronically , inveterate )
   in a habitual and longstanding manner
    Smoking chronically
   smoking chronically