Physics term describing waves or light that lack a fixed phase relationship; also used more generally for speech or writing that is disjointed or unclear. Antonym: コヒーレント (coherent).
Antonyms: コヒーレント
Incoherent light has different properties from laser light.
His explanation was incoherent, and I couldn't understand what he wanted to say.
Borrowed from English 'incoherent', itself from the prefix 'in-' (not) + 'coherent'.