Home › Words › D › deleteriousnessdeleteriousnessdeleteriousness · noun — the quality or state of being deleterious.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom deleterious + -ness.nounThe quality or state of being deleterious.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.detrimentalness 82% match — The quality of being detrimental. vs deleteriousness →detrimentality 77% match — The quality of being detrimental. vs deleteriousness →deleteriously 74% match — In a deleterious manner; harmfully. vs deleteriousness →deleterious 71% match — Harmful, often in a subtle or unexpected way. vs deleteriousness →deletability 69% match — The state or quality of being deletable. vs deleteriousness →damagingness 69% match — The state or condition of doing damage. vs deleteriousness →perniciousness 66% match — The condition of being pernicious; destructiveness vs deleteriousness →derogatoriness 66% match — The state or quality of being derogatory. vs deleteriousness →