What is the opposite of "interesting" in "This person is interesting"?

During a conversation yesterday, I couldn't come up with the opposite of interesting.

"Initially she was very interesting, and I enjoyed her company. However, a few months later, she became [BUM] not interesting."

Not interesting is what I came up with. What is the opposite of interesting that I should have used?


Solution 1:

This site list a few antonym, from which my favourite in your context should be dull.

Solution 2:

There are loads of antonyms to "interesting". If you don't mind being blunt about a person (which is traditionally a problem if you're English) then my favourites, grouped according to similar implication, include:

  • Uninteresting (grammatically better than "not interesting")
  • Dull, boring
  • Common, undistinguished, unremarkable
  • Plain (of unexceptional appearance)
  • Ordinary (not exactly damning, but hardly a compliment)
  • Pedestrian, prosaic (similar to Ordinary, but slightly more insulting)
  • Tedious, insipid, banal, vapid (of uninteresting attitudes or actions)
  • Vanilla

I like Vanilla especially, as it's a colourful term to describe a distinct lack of uniqueness; it's used especially when referring to a lack of sexual adventurousness.

Solution 3:

Stopped being interesting? Became boring, tiresome, or even a nuisance?