All sure-fire synonyms
sure-fire
S s adjective sure-fire
- indubitable — that cannot be doubted; patently evident or certain; unquestionable.
- goofproof — (of a product, procedure, etc.) designed to be simple enough for anyone to use or implement.
- infallible — absolutely trustworthy or sure: an infallible rule.
adj sure-fire
- guaranteed — a promise or assurance, especially one in writing, that something is of specified quality, content, benefit, etc., or that it will perform satisfactorily for a given length of time: a money-back guarantee.
- failsafe — Electronics. pertaining to or noting a mechanism built into a system, as in an early warning system or a nuclear reactor, for insuring safety should the system fail to operate properly.
- foolproof — involving no risk or harm, even when tampered with.
- idiot-proof — built, organized, written, etc., in such a way as to be usable by or understandable to any person of average intelligence or skill: an idiot-proof camera.
- foreseeable — to have prescience of; to know in advance; foreknow.