Definition of "obsessive" in English

adjective

1. Prone to cause obsession.

   • The idea is too tempting, it's obsessive.

2. Having one thought or pursuing one activity to the absolute or nearly absolute exclusion of all others.

   • Hardcore fans' obsessive behavior may take over their lives.

3. Excessive, as results from obsession.

   • A workaholic's obsessive zeal may lead to success or burnout.

noun

1. A person who is obsessed, who has an obsession.