What does preclusive mean?
Preclusive is a formal adjective meaning that something prevents or excludes another possibility. It is especially useful when describing an obstacle, restriction, legal effect, or condition that makes an outcome impossible. A preclusive rule, for example, may bar people from entering a protected area, while an action with a preclusive effect can prevent an agreement from taking place. The word is more precise than simply “preventive” in some legal and institutional contexts, where it suggests an existing condition or measure has the effect of shutting something out. Though less common in everyday speech, preclusive is useful in formal writing because it clearly distinguishes exclusionary consequences from measures that are primarily intended to prevent harm. Its relatively unfamiliar form may also make it memorable for readers building a more precise vocabulary.
adjectiveTending to prevent or exclude; having the effect of shutting out or making something impossible.
- Tending to prevent, exclude, or shut out something.
"The court's ruling had a preclusive effect on all future claims."
"The new regulation was preclusive of any attempt to reopen the inquiry."
"Rising costs had a preclusive effect on smaller exporters."
From Latin praecludere, literally “to close off,” preclusive carries the idea that a condition or rule leaves no opening.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of preclusive
Preclusive comes from Latin praeccludere, a verb meaning “to close off” or “prevent,” formed from prae-, a prefix meaning “before,” and claudere, “to close.” Its earliest English use was as a verb, with the adjective preclusive developing later. Related English words such as include, exclude, seclude, and occlude continue the inherited Latin root associated with closing.
Related word forms
How preclusive is actually used
Preclusive is formal and relatively uncommon. It is especially used in legal, institutional, and academic contexts to describe a condition or measure that prevents an outcome or excludes a possibility. It is distinct from preemptive, which refers to taking action before an event occurs.
Easily confused with preclusive
Preemptive means taking action before a problem or threat arises, whereas preclusive describes something that prevents or excludes a possibility.
Preventive is the broader, more usual term for measures intended to stop something, while preclusive more specifically suggests an excluding or barring effect.