I get what you're saying, and agree. When I was in middle school I'd shamelessly use MS Word to replace words in my reports with fancy sounding synonyms that I had never heard of before. I kind of cringe at the memory. But on the other hand, that's also kind of how I got them to be in my vocabulary. I feel like once you commit to a new word in your own writing, you start seeing it everywhere and getting a feel for how it's naturally being used.