His disputatious nature makes everyone avoid discussing anything with him in the office.

disputatious 是由名词 dispute（争论、争端）加上形容词后缀 -atious 构成的形容词。dispute 来自拉丁语 disputare（讨论、辩论），后缀 -atious 表示"倾向于...的"或"有...特性的"。 disputatious 形容一个人"好争论的、爱挑起争端的"，指总是倾向于与他人争论或挑起争辩的性格特点。