Safe and Sure-fire

Safe adjective - Not exposed to the threat of loss or injury.

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

Nearby Words: safety, safekeeping, safely

Sure-fire adjective - Certain to be successful.

Safe and sure-fire are semantically related. You can use "Safe" instead an adjective phrase "Sure-fire".