Epidemic

Noun

 * 1) A widespread disease that affects many individuals in a population.
 * 2)  An occurrence of a disease or disorder in a population at a frequency higher than that expected in a given time period.

Antonyms

 * endemic

Adjective

 * 1) Like or having to do with an epidemic; widespread

Thesaurus
abounding, abundant, affluent, all-sufficing, ambulatory plague, ample, aplenty, average, besetting, black death, black plague, bottomless, bounteous, bountiful, bubonic plague, catching, cellulocutaneous plague, common, communicable, compact, contagious, copious, current, defervescing plague, diffuse, dominant, effuse, endemic, epidemial, epigrammatic, epiphytotic, epizootic, exhaustless, extravagant, exuberant, fat, fertile, flush, full, galore, general, generous, glandular plague, growth, hemorrhagic plague, in plenty, in quantity, inexhaustible, infectious, infective, inoculable, larval plague, lavish, liberal, luxuriant, many, maximal, meaty, much, murrain, normal, numerous, opulent, ordinary, outbreak, overflowing, pandemia, pandemic, pest, pesthole, pestiferous, pestilence, pestilential, plague, plague spot, plenitudinous, plenteous, plentiful, plenty, pneumonic plague, popular, predominant, predominating, premonitory plague, prevailing, prevalent, prodigal, productive, profuse, profusive, rampant, rash, regnant, reigning, replete, rich, rife, riotous, routine, ruling, running, running over, scourge, septicemic plague, siderating plague, sporadic, spread, spreading, standard, stereotyped, superabundant, taking, teeming, tuberculosis, universal, upsurge, usual, wealthy, well-found, well-furnished, well-provided, well-stocked, white plague, wholesale, wide-ranging, widespread, zymotic