Foolproof
ahd-5
adjective.
Designed so as to be impervious to human incompetence, error, or misuse.
adjective.
Effective; infallible.
Wiktionary, Creative Commons Attribution/Share-Alike License
adjective.
For a device:
protected
, or
designed
to be
proof
against
misuse
or
error
;
fail-safe
.
adjective.
For an idea or plan:
infallible
, or
bulletproof
.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
not liable to failure
verb.
proof against human misuse or error
Word Usage
"“A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.”"
Equivalent
infallible
Hypernym
Words that are more generic or abstract
proof
Same Context
Words that are found in similar contexts
believable
catatonic
flabbergasted
frictionless
impervious
Synonym
Words with the same meaning
adaptable
airtight
ballproof
bombproof
bulletproof