whimsical
adjective uk/ˈwɪm.zɪ.kəl/ us/ˈwɪm.zɪ.kəl/
离奇的；古怪的；异想天开的
unusual and strange in a way that might be funny or annoying
a whimsical tale 离奇的故事
Despite his kindly, sometimes whimsical air, he was a shrewd observer of people. 尽管他为人和善，有时也有些古怪，但对人的观察很是敏锐。
Synonyms: capricious impulsive