Hard-and-fast

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    strictly maintained; not subject to variation idiomatic, not-comparable

    "to stick to hard-and-fast rules"

Adjective
  1. 1
    (of rules) stringently enforced wordnet

Synonyms

All synonyms
absolutebindingcompulsoryconclusivedecisivedecretory

Example

More examples

"to stick to hard-and-fast rules"

Etymology

First attested 1867, originally of a ship on shore.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.