n. 25B6; noun
an epidemic of typhoid : OUTBREAK, plague, pandemic, epizootic.
a joyriding epidemic : SPATE, rash, wave, eruption, outbreak, craze; flood, torrent; upsurge, upturn, increase, growth, rise.
25B6; adjective the craze is now epidemic : RIFE, rampant, widespread, wide-ranging, extensive, pervasive; global, universal, ubiquitous; endemic, pandemic, epizootic.