Skip to main content
Glite Dictionary
bright-line rule

bright-line rule

1 7.8
A clear rule that tells people exactly what to do
  • noun
  • /ˈbraɪtˌlaɪn ruːl/
  • Jargon
translation icon : regla clara
  • The judge applied a bright-line rule to ensure consistency in the court's decisions.

So we actually do have hard bright line rules in situations where failure is catastrophic.

Examples

  • Several district courts have also rejected the bright-line rule.

    Academic text (2017)

  • Part V argues that the Supreme Court should abandon the standard-based approach and adopt a bright-line rule for third-party consent searches of closed containers.

    Academic text (2017)

  • So we actually do have hard bright line rules in situations where failure is catastrophic.

    andrew gold | heretics.

  • The article argues against a bright-line rule.

    Academic text (2017)

  • The solution, however, is not necessarily the present bright-line rule requiring physical injury or property damage.

    Academic text (1990)

  • But where the prosecutor is involved, the bright-line rule arguably does not.

    Academic text (2017)

  • In both of these cases, the interaction of the bright line rule with other doctrines leads to unsatisfactory results.

    Academic text (2017)

  • But it still retains most of the clarity and ease of application of the bright-line rule.

    Academic text (2017)

  • The proposed rule has several policy advantages over the rigid bright-line rule that currently prevails in most circuits.

    Academic text (2017)

  • Where the challenged governmental conduct involves law enforcement, the bright-line rule follows nicely from the underlying principles.

    Academic text (2017)

Synonyms

red line
vsbright-line rule
  • Literature
23 4.4

A limit in talks that must not be crossed to avoid serious problems

is an unambiguous decision standard not only a negotiation boundary
strict rule
vsbright-line rule
14 3.4

An order people must follow exactly, often with punishment if ignored

is defined by clarity and unambiguity rather than enforcement intensity
hard-and-fast rule
vsbright-line rule
6 4.5

A fixed instruction you cannot change or adapt

is about clear defined boundaries rather than being unchangeable
bright line
vsbright-line rule
  • Jargon
5 6.3

A clear, simple rule or limit used to make decisions, often in law

is the formally defined unambiguous standard used in professional decisions
redline
vsbright-line rule
4 6.4

A limit that must not be crossed in talks or technical work

is a rule giving clear guidance rather than a forbidden negotiation limit

Antonyms

vague
230 4.6

Not clear or detailed so you are unsure what is meant

ambiguous
68 6.3

Not clear because it can have more than one meaning

How Complex

jungle of regulations
  • Literature
7.5
bright-line rule
  • Jargon
1 7.8

Surface Forms

bright-line rule singular
bright-line rules plural

Morphology

bright-line + rule

The compound 'bright-line' uses a metaphorical extension of 'bright' (clear/obvious) + 'line' (boundary), so a learner who knows the constituent words can likely infer it means a clear, sharply drawn boundary and thus a clearly defined rule. However, the phrase is a specialized legal/professional term and relies on metaphorical composition rather than purely literal combination, so its precise technical sense may not be fully predictable to a B1 learner without exposure.

Etymology

Bright-line rule may come from the idea of drawing a very bright line on a map or paper to separate two areas. That clear picture shows exactly what is allowed and what is not, so the phrase means a rule that is 'clear' and 'unambiguous'.