coincidentalKK [koˏɪnsəˋdɛntəl] /koʊˌɪnsəˈdɛntəl/形容詞1巧合的、偶然的The similarity between the two songs is purely coincidental.這兩首歌的相似之處純屬巧合。2同時發生的正式The drop in sales was coincidental with the change in management.銷售下滑與管理層更動同時發生。