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Definitions

hard-and-fast

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


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.

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

I’m not necessarily sold on hard-and-fast rules when it comes to age; it also depends on your risk tolerance, expected longevity and how long you intend to work.

From MarketWatch • Dec. 11, 2025

I do not like making hard-and-fast predictions, but this is one I am going to stick with—you’ve got it in print, right here.

From Slate • Sep. 12, 2024

Unfortunately, there’s no hard-and-fast rule that tells you how to form the plural of every word that ends in o.

From "Woe Is I" by Patricia T. O'Conner