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Insufficiency vs Inefficacy - What's the difference?

insufficiency | inefficacy |

As nouns the difference between insufficiency and inefficacy

is that insufficiency is the lack of sufficiency; a shortage or inadequacy while inefficacy is the condition of being ineffective.

insufficiency

English

Noun

(insufficiencies)
  • The lack of sufficiency; a shortage or inadequacy.
  • The troops went hungry because of the insufficiency of their supplies.

    Synonyms

    * unsufficiency (obsolete)

    inefficacy

    English

    Noun

    (-)
  • The condition of being ineffective