noun, noun or participle which takes 'suru', transitive verb
having an accident; unexpected occurrence
Rare formal noun/suru-verb meaning an accidental or unforeseen event. Not used in everyday conversation; more common alternatives include 事故 or 偶然の出来事.
偶有の事態に備えて保険に入る。
Take out insurance in preparation for an unforeseen event.
Compound of 偶 (accidental, by chance) and 有 (to exist, to happen). The exact historical derivation is uncertain, but the word is a rare Sino-Japanese formation.