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• hard hat
  hard hat

  noun

  a protective helmet of metal or plastic, especially as worn by construction or factory workers.
• hard-hat
  hard-hat

  noun

  a construction worker, especially a member of a construction workers' union.

hard hat

¹ American  

noun

hard hats plural

1. a protective helmet of metal or plastic, especially as worn by construction or factory workers.

2. a uniformed soldier of a regular army, as opposed to a guerrilla.

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hard-hat ² American  

[hahrd-hat] / ˈhɑrdˌhæt /

Or hardhat

noun

Informal.

1. a construction worker, especially a member of a construction workers' union.

2. a working-class conservative.

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adjective

1. pertaining to or characteristic of hard-hats.

   enlisting hard-hat support for his policies.

hard hat British  

noun

1. a hat made of a hard material for protection, worn esp by construction workers, equestrians, etc

2. informal a construction worker

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adjective

1. informal characteristic of the presumed conservative attitudes and prejudices typified by construction workers

hard hat Idioms  

1. A working-class ultraconservative. For example, They were counting on a large number of votes from the hard hats. This term alludes to the rigid protective headgear worn by construction workers, who were noted for their conservatism during the tumultuous 1960s. [c. 1960]

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Other Word Forms

Noun Inflected Forms

• hard hats
  plural

Etymology

Origin of hard hat¹

First recorded in 1925–30

Origin of hard-hat²

First recorded in 1960–65

Example Sentences

In a hard hat and hi-viz vest, Asdourian appears climbing ladders to tape- and marker-over all mentions of the brand.

From The Wall Street Journal • Jun. 27, 2026

When I saw her, brandishing a hard hat and trowel at a housebuilding site, there seemed no question of her going anywhere.

From BBC • Sep. 6, 2025

On nearby benches, one person in scrubs and another in a reflective vest and hard hat ate their Tupperware lunches, like some kind of Village People reboot waiting to happen.

From Slate • Aug. 13, 2025

Glendale police said that they found several jewelry boxes, along with a construction hard hat and a vest, which police say may have been used to get near a home without drawing attention.

From Los Angeles Times • May 28, 2025

It had been a mistake to take off his hard hat to sleep.

From "Gregor the Overlander" by Suzanne Collins

Related Words

• helmet