what is difference between foolproof and unfailing
From fool + -proof.
- IPA(key): /ˈfuːl ˌpɹuːf/
foolproof (comparative more foolproof, superlative most foolproof)
- (of a device) Protected against, or designed to be proof against, misuse or error.
- (of an idea or plan) Certain to succeed in all eventualities, or claimed to be so; infallible.
foolproof (third-person singular simple present foolproofs, present participle foolproofing, simple past and past participle foolproofed)
- (transitive) To make foolproof.
un- + failing
unfailing (comparative more unfailing, superlative most unfailing)
- changeless, constant