bất hợp lệ

== Vietnamese == === Etymology === Sino-Vietnamese word from 不 (“not”) and 合例 (“valid”). === Pronunciation === (Hà Nội) IPA(key): [ʔɓət̚˧˦ həːp̚˧˨ʔ le˧˨ʔ] (Huế) IPA(key): [ʔɓək̚˦˧˥ həːp̚˨˩ʔ lej˨˩ʔ] (Saigon) IPA(key): [ʔɓək̚˦˥ həːp̚˨˩˨ lej˨˩˨] === Adjective === bất hợp lệ invalid; unqualified; noncompliant