Firm and Sure-fire

Firm adjective - Not showing weakness or uncertainty.

Sure-fire and firm are semantically related. In some cases you can use "Sure-fire" instead an adjective "Firm".

Nearby Words: firming, firmness, firmly, firmed

Sure-fire adjective - Certain to be successful.

Firm and sure-fire are semantically related. Sometimes you can use "Firm" instead an adjective phrase "Sure-fire".