"non-trivial" is the one that annoys me the most but I can't fully explain why. Perhaps it's a bit like the reaction when I hear "visceral" while listening to book and movie reviews. It just seems a tad pretentious; or stuck-up. Urgh.

I understand it's all about precision but to me it doesn't feel like the type of plain English that normal people use. Perhaps it's too... formulaic?