What does obsess mean?
To obsess is to think about someone or something with unusually persistent, intense, or excessive attention. The expression “obsess over” is especially common: a person may obsess over a person, a task, a problem, or even a small detail. The word can imply that the attention is difficult to control and may be viewed as irrational or unproductive, although it can also suggest admiration or fascination rather than outright disapproval. For example, someone might obsess over a new hobby, repeatedly revisit a personal concern, or become preoccupied with getting a project exactly right. “Obsess” comes from the Latin root associated with besieging or occupying, a fitting origin for an idea that captures the mind and refuses to release it. It is useful when describing attention that has become excessive or difficult to manage.
verbTo be preoccupied with someone or something to an excessive or persistent degree. It can also mean to dwell on a thought or concern repeatedly.
- To be excessively preoccupied with a person, object, idea, or activity.
- To dwell on a thought or concern repeatedly and persistently.
"She tends to obsess over minor details long after the work is finished."
"He obsess over every detail of the project, checking the plans several times a day."
"The novel’s central question continues to obsess readers long after the final chapter."
From the Latin for being besieged, “obsess” originally evoked a siege; today it describes a thought that refuses to leave you alone.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does obsess come from?
The English word “obsess” comes from Latin “obsessus,” a past participle associated with “obsidere,” meaning “to besiege” or “to sit down against.” The metaphorical sense of being occupied or preoccupied developed in English during the 17th century. The root is also reflected in cognates such as “obsession,” “obsessive,” and “obsolescent,” all connected with the idea of being strongly occupied or taken over.
Related word forms
How obsess is actually used
In standard modern English, “obsess” is usually intransitive and commonly takes “over”: “obsess over something.” “Obsess about” is also established, especially in British usage. The word generally conveys excessive, persistent attention and often has a mildly critical or humorous tone.
Easily confused with obsess
To possess something is to own or have it, whereas to obsess over something is to think about it excessively.
Obsolete means no longer current or useful, while obsess means to be excessively preoccupied with something.