Abstruse vs Obtuse

This abstruse vs obtuse quiz gives you 10 fill-in-the-blank sentences to test whether you can tell these two tricky words apart. You will read clues like "The Science Friday talk show is not ___; it is quite easy to understand" and "How do we help ___ people to develop their thinking?" and pick the word that fits. Aimed at intermediate students, since both words are a little advanced and easy to mix up. Here is something many people miss: obtuse is not only a word for someone slow to understand, it is also the name for an angle wider than 90 degrees.