addictive /əˈdɪktɪv/adjective 3noun 2forms 3 adjective3 •Causing or tending to cause addiction; habit-forming.These are addictive drugs. •Enjoyable, so that one comes back for more.There are loads of mazes, it's all really good fun and utterly addictive […] — 1991 •Characterized by or susceptible to addiction.He has an addictive personality. noun2 •A drug that causes an addiction. •Anything that is very habit-forming. formsaddictives · more addictive · most addictive