Word: failproof
Part of speech: Adjective
Syllables: fail
proof
Definition: Resistant to failure; that cannot go wrong.
Morphemes:
Affix: fail
Language: en
PoS: Noun
Meaning: A failure (something incapable of success)
Etymology Compounds: Affix: fallere
Language: la
Decoded: fallere
Meaning: to deceive, disappoint
Affix: -proof
Language: en
PoS: Suffix
Meaning: Used to form adjectives denoting an impervious or impenetrable quality.