"Overnegligence" is a 15-letter word that describes the state of being excessively negligent. It is pronounced "oh-ver-neg-li-jens" with the following IPA phonetic transcription: /ˌoʊ.vər.ˈneɡ.lə.dʒəns/. The word is composed of three morphemes, "over," "negli," and "gence." "Over-" is a prefix meaning "excessively" or "too much." "Negli" originates from "negligent," which means careless or indifferent about something. Lastly, "-gence" is a noun suffix denoting an act, process, or state. Together, they form a word that conveys a sense of neglect that goes beyond what's acceptable.