LOL.....I always have two or three harder words I latch on to and use too much. Don't worry....they're eventually replaced by others as they come about.

loquacious - very talkative
lackadaisical - a good one to use with your kids...very lazy
hypothetical - it seems all "situations" are hypothetical
redundant...let say it again and be redundant
obsolete - an 8-track player is completely obsolete (I can hear some of our younger readers saying "huh, what's that??"
To name just a few I've latched on to in the past.

I have NO IDEA if this is a BPD or Aspie trait, but I've always done it.