convenience反义词：inconvenience。
inconvenience词义：1、不便；麻烦；困难trouble or problems, especially concerning what you need or would like yourself.2、带来不便者；麻烦的人（或事物）a person or thing that causes problems or difficulties.3、给（某人）造成不便（或带来麻烦）to cause trouble or difficulty for ***.
