iron rule

Unyielding dictatorial control

An iron rule is a principle or guideline considered rigid and unbreakable: The iron rule of budgeting is to spend less than you earn.

The metaphor suggests the hardness and inflexibility of iron—unlike a mere suggestion or soft guideline, an iron rule admits no exceptions.

Often used interchangeably with iron law.

Related

decree · mandate · martial law · law and order · regimentation · steadfastness · hard and fast · no exceptions · zero tolerance · oppression · statute · axiom · absolutism · code · canon · tyranny · totalitarianism · dominance

Opposites
governance rigidity

iron ruledemocracy

Rule by the people

self-governance · popular sovereignty · democratic governance · anarchy · laissez-faire

permanence and changeability

iron rulerule of thumb

Practical approximation, not strict

gentleman's agreement

enforcement strictness

iron rulepermissiveness

Tolerance of behavior others forbid

leniency · soft touch · tolerance · indulgence · clemency

Family

iron, rule, irons, ironed, ironing, irony, rules, ruled, ruling

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G