About
The character 痼 is a phono-semantic compound. Its enclosing radical 疒 places it in the domain of illness. The internal component 固 acts as the phonetic element for the sound "gù" and contributes semantic meaning related to solidity and stubbornness. Together, these elements define a chronic or deeply entrenched illness that is obstinate and resistant to treatment. Beyond its literal medical sense, the character is often used in psychological or behavioral contexts, as in "痼疾", to describe stubborn bad habits, entrenched societal flaws, or ingrained negative patterns that are difficult to eradicate.