The answer is in fact <em>Anxious</em>. I am putting this answer here not to take credit, but merely because despite the fact that the other answer has a low rating by a lot of people, I just got this question, gave this answer, and got it right(on e2020/Edge). So I can confirm that Anxious is the correct answer, at least on those previously mentioned platforms.
P.S. It would not let me comment directly on the other answer so that is why I am putting this as a separate answer.
Word Root of terrestrial. The Latin word terra, meaning “earth,” “land,” or “ground,” gives us the root terr. Words from the Latin terra have something to do with the earth or land
