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.

Annoying, there is no hard-and-fast answer given in the report.

From MarketWatch • Apr. 6, 2026

This is why the broadcast limit is not really a hard-and-fast limit.

From BBC • Mar. 30, 2026

Also, California has few hard-and-fast rules on residency.

From The Wall Street Journal • Jan. 25, 2026

“There are no hard-and-fast rules, only general guidelines and varied court decisions.”

From Los Angeles Times • Nov. 16, 2023

But my parents didn't have hard-and-fast rules about our career aspirations.

From "Americanized" by Sara Saedi