SHORTAGE
deficit, shortage, shortfall
(noun) the property of being an amount by which something is less than expected or required; “new blood vessels bud out from the already dilated vascular bed to make up the nutritional deficit”
dearth, famine, shortage
(noun) an acute insufficiency
Source: WordNet® 3.1
Etymology
Noun
shortage (countable and uncountable, plural shortages)
A lack or deficiency; an insufficient amount.
Antonyms
• glut
• mountain (as in butter mountain)
Source: Wiktionary
Short"age, n.
Definition: Amount or extent of deficiency, as determined by some
requirement or standard; as, a shortage in money accounts.
Source: Webster’s Unabridged Dictionary 1913 Edition