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hard-and-fast rule

hard-and-fast rule

6 4.5
A fixed instruction you cannot change or adapt
  • noun
translation icon : regla estricta
  • People seem to be looking for some hard and fast rule that's always applicable.

There are no hard and fast rules that govern this.

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Examples

  • There are no hard and fast rules about what approach to use for different situations, age groups, or cultures.

    Academic text (2010)
  • The main prerequisite, say locals, is to remember three hard and fast rules: Be honest, be fair, and be friendly.

    Academic text (1994)
  • So we are way too early to actually give hard and fast rules on some of these things.

  • Well, there are no hard and fast rules.

  • Nobody can make hard and fast rules about women.

    Fiction book (1998)
  • So there is no hard and fast rule for our bodies!

    Blog text (1)
  • There is no hard and fast rule here, and it is not something that can be prescribed.

    Blog text (16)
  • The only hard and fast rule you should adhere to in marketing is what works for you.

    Blog text (18)
  • There is no hard-and-fast rule that says one type of corporate client is better than another.

    Academic text (2009)
  • In mathematics, there are few hard-and-fast rules that apply to all problems.

Synonyms

strict rule
vshard-and-fast rule
14 3.4

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

is unchangeable in any situation rather than merely strictly enforced
strict code
vshard-and-fast rule
3 4.2

A set of rules people must always follow with no exceptions

is fixed and cannot be changed across different situations
bright-line rule
vshard-and-fast rule
  • Jargon
1 7.8

A clear rule that tells people exactly what to do

is fixed across situations and cannot be adapted for context

How Inflexible

hard-and-fast rule
6 4.5
hidebound approach
  • Formal
8.8

Surface Forms

Morphology

hard-and-fast + rule

The phrase 'hard-and-fast' uses 'hard' (firm) and 'fast' in the sense of fixed/secure rather than quick, so the literal constituents only partially hint at rigidity. A B1 learner who knows the words might guess a sense of firmness but would likely not predict the conventionalized meaning 'inflexible, unchangeable' without prior exposure, so the expression is only partially transparent.

Etymology

Hard-and-fast rule comes from the image of something held so tightly it is hard and fast, like a rope tied tight and stuck in place. So, it means a rule that is 'fixed' and 'cannot be changed'.