Disaffected: 形容词，“不满的”，与dissatisfied同义；
Unaffected: 形容词，“未受影响的”not affected or influenced by。
Some disaffected members left to form a new party.部分不满的成员已离党另立新党。
People’s rights are unaffected by the new law.新法规没有影响人民的权利。