inadequacy

Meanings

1. 1
   noun

   the state of being insufficient or not good enough for a purpose

   The report exposed the inadequacy of the city's flood defences.

From in- ('not') + adequacy, from adequate, from Latin adaequatus, past participle of adaequare ('to make equal to'), from ad- ('to') + aequare ('to make equal'), from aequus ('equal').

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