Definitions

hard-and-fast

[hahrd-n-fast, -fahst] / ˈhɑrd nˈfæst, -ˈfɑst /

ADJECTIVE

strict

Synonyms

WEAK

absolute binding carved in stone compulsory conclusive decisive dictated exacting final inflexible irrevocable mandatory set set in concrete unalterable unbending written

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

There’s no hard and fast rule for how quickly, or not, airlines have to act if they are going to cancel a mistake fare.

From The Wall Street Journal • Apr. 22, 2026

You warned that what we believed to be hard and fast rules protecting the free press were really just soft norms.

From Slate • Feb. 24, 2026

Some retail investors feel safer seeking out larger firms with well-known brands rather than boutique investment firms, but there is no hard and fast rule that says one is better than the other.

From MarketWatch • Nov. 17, 2025

"We fell into it hard and fast in 2009, and here we are almost 16 years later," Dan said in the new video, telling followers they "can't live in fear any more".

From BBC • Oct. 14, 2025

She gritted her teeth against the pain, her heart beating so hard and fast, she could feel it in her toes.

From Anya and the Dragon by Sofiya Pasternack

hard-and-fast

Example Sentences

Related Words