Home › Words › U › undeliverabilityundeliverabilityundeliverability means the state or quality of being undeliverable.Among words judged in Lexicurio's Arena, undeliverability ranks #32,509 of 42,747 for Qualifying.EtymologyFrom un- + deliver + -ability or undeliverable + -ity.nounThe state or quality of being undeliverable.e.g.“Response rate was limited due in part by^([sic]) the undeliverability of a large portion of the surveys (approximately 50%) and to respondents' attrition from the firm in question.” — 2007, Angela Kay Lawson, Having Your Day in Court, page 25:Definitions & examples from Wiktionary (CC BY-SA 3.0).