Obsessive

//əbˈsɛs.ɪv// adj, noun

Definitions

Adjective
  1. 1
    Prone to cause obsession.

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

  2. 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. 3
    Excessive, as results from obsession.

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

Adjective
  1. 1
    characterized by or constituting an obsession wordnet
Noun
  1. 1
    A person who is obsessed, who has an obsession.
  2. 2
    a person who has obsessions wordnet

Etymology

Etymology 1

From obsess + -ive.

Etymology 2

From obsess + -ive.

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