failsafe

Main Entry:
fail-safe [feyl-seyf]
Part of Speech: adjective
Definition: guaranteed not to fail
Synonyms: confident, covered, foolproof, protected, reliable, reliant, safeguarded, secure, sound, sure
Main Entry: sure-fire
Part of Speech: adjective
Definition: dependable
Synonyms: certain, excellent, fail-safe, foolproof, good, infallible, reliable
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