Consider:
cliché = a phrase or opinion that is overused and betrays a lack of original thought.
blasé = unimpressed with or indifferent to something because one has experienced or seen it so often before.
I wanted to learn how to type that sign, the sign on the top of the ending e in above examples, by computer keyboard. I started to search about it, but soon I faced the problem that I do not know what is that sign called in English.