Definitions

sure-fire

ADJECTIVE

dependable

Synonyms

STRONGEST

foolproof

WEAK

certain excellent fail-safe good infallible reliable

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.

A celebrity’s ties to a property would create instant buzz—and served as a sure-fire tactic for luring in a line of prospective buyers.

From MarketWatch • Jun. 3, 2026

A few years ago, the Rams defensive line was built around a sure-fire Hall of Fame player and a supporting cast.

From Los Angeles Times • Jul. 28, 2025

The problem, of course, is that this isn't a sure-fire solution and, if it was going to happen, it needed to happen fast.

From Salon • Jul. 17, 2024

Against Punjab he accounted for Jonny Bairstow, one of the more accomplished players of fast bowling, by hurrying him on the pull shot, a sure-fire indicator of how quick he was.

From BBC • Apr. 8, 2024

Then, as happens so often, the preacher turned over his hole-card, the sure-fire card.

From "East of Eden" by John Steinbeck