chipper[ˈtʃipə]

adj. 快乐的 v. 高兴，喋喋不休

• unachievable
• unachieved
• unaffected
• unafraid
• unannounced
• unanswerable
• unanswered
• unappealing
• unarmed
• unattainable
• unattended
• unattractive
• unavailable
• unavoidable
• unavoidably
• unaware
• unawareness
• unbalanced
• unbearable
• unbelievable
• unbelievably
• unbelted
• unborn
• unbreakable
• unbroken