As nouns the difference between pliability and pliancy
is that pliability is the quality or state of being pliable; flexibility; pliableness while pliancy is the quality of being pliant.
pliability
English
Noun
(pliabilities)
The quality or state of being pliable; flexibility; pliableness.
References
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pliancy
English
Noun
The quality of being pliant.