12345678910111213Keywordobstinate diseasechronic diseaselong-term passionFrequency#5287Strokes13ReadingsgùMnemonic疒 (sickness) gives the meaning and 固 the sound.Stroke orderComposed of疒sickness固hardUsed in vocabulary痼疾gùjíchronic disease痼gùobstinate disease; (of passion, hobbies) long-term