fail-safe - WordReference.com Dictionary of English

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fail-safe

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Concise Oxford English Dictionary © 2008 Oxford University Press:
fail-safe

▶adjective

1 causing a piece of machinery to revert to a safe condition in the event of a breakdown.

2 unlikely or unable to fail.

'fail-safe' also found in these Oxford entries:

Forum discussions with the word(s) "fail-safe" in the title:

fail soft, fail safe

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