IPA: /ˌɪnədˈvɜːrtənsi/
KK: /ˌɪnədˈvɜːrtənsi/
The state of being inattentive or careless, often leading to mistakes or accidents.
His inadvertency caused the project to be delayed.
Inadvertency → It is formed from "in-" (meaning not) and "advertent" (from Latin "advertentem", meaning attentive or heedful) combined with the suffix "-cy" (meaning the state or condition of). The word "inadvertency" refers to the state of being inattentive or not paying attention.
Think of 'not' ('in-') being attentive ('advertent') — that's why inadvertency means a lack of attention.