Definitions

nāo (dialect) contracted form of 不好[bù hǎo]

Etymology

Not  good 

About

The character "孬" is etymologically constructed from the components "不" meaning "not" and "好" meaning "good", forming a compound that directly signifies "not good" or "bad". It originated as a dialectal expression in northern Chinese vernaculars before being adopted into the standard written language, with its form remaining consistent as a combination of these two elements. Over time, its meaning has been consistently applied to describe inferior quality or cowardly behavior, without significant semantic shift, and its structure continues to transparently convey its negative connotation through its constituent parts.