The quality or state of being adequate; sufficient for the purpose or requirement. The condition of meeting minimum standards or expectations.
From Latin 'adaequatus' meaning 'made equal to', from 'ad-' (to) + 'aequus' (equal). The concept evolved from mathematical equality to general sufficiency for a purpose.
Adequacy is often seen as mediocre, but it's actually quite valuable - it represents the sweet spot where resources aren't wasted on excess while still meeting all necessary requirements. Many engineering solutions aim for adequacy rather than perfection.
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