sufficiency

(noun) sufficient resources to provide comfort and meet obligations. Example: "Her father questioned the young suitor's sufficiency."

(noun) an adequate quantity; a quantity that is large enough to achieve a purpose. Synonyms: enough. Examples: "Enough is as good as a feast." "There is more than a sufficiency of lawyers in this country."

(noun) the quality of being sufficient for the end in view. Synonyms: adequacy. Example: "He questioned the sufficiency of human intelligence."