What does obstructor mean?
An obstructor is a person who deliberately or persistently hinders another person, an action, or the progress of a process. The term is formal and relatively uncommon, appearing most often in legal, political, and institutional discussions. Unlike a general description of a difficulty, the word often implies an active attempt to stand in the way, although it can also refer neutrally to a person or body that prevents movement or completion. For example, a court may describe a party as an obstructor of an investigation, while a critic might call a manager an obstructor of organizational change. Although relatively uncommon in everyday speech, “obstructor” is useful when the obstruction itself is central to the situation. It is related etymologically to “obstruct,” “obstruction,” and “obstructive,” all of which focus on blocking progress, access, or action.
nounA person who obstructs, hinders, or prevents progress. The word is chiefly used in formal or legal contexts.
- A person who obstructs, hinders, or prevents progress or action.
"The committee appealed to the court, describing the landlord as a deliberate obstructor of the redevelopment."
"The new manager was accused of being an obstructor of change rather than a leader."
"The tenant's lawyer argued that the landlord had acted as an obstructor by refusing to grant access to the property."
The regular plural is “obstructors.”
"The organizers identified the main obstructors to progress."
An obstructor is more than a mere obstacle: the word evokes someone deliberately standing in the way of movement or development.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does obstructor come from?
“Obstructor” comes from Latin, from obstruere, meaning “to build against” or “to obstruct.” The English word developed with the sense of a person who hinders or blocks something. Its relatives “instructor” and “constructor” come from other Latin verbs built on struere, “to build,” while “destruction” derives from destruere, “to tear down.”
Related word forms
How obstructor is actually used
This is a formal and relatively uncommon word. It is especially associated with legal, political, and institutional contexts, and it can suggest deliberate obstruction rather than an accidental delay.
Easily confused with obstructor
An objector primarily expresses opposition to a proposal or action, whereas an obstructor actively hinders or prevents progress.