1. crossing or extending across a continent

Question

involuntary
2. hostile; unkind
transcontinental
3. existing below the surface of the earth
inedible
4. occuring twice in a year
biennial
5. happening every two years; a plant with a life cycle of two years
aforementioned
6. that which has been spoken of before
semiannual
7. unfit to be eaten
inarticulate
8. unable to speak or clearly express ideas
unfriendly
9. before the Flood; out of date; antiquated
subterranean
10. apart from one's choice or will
antediluvian

Answer 1

Here are the correct matches for the definitions provided:

1. transcontinental: crossing or extending across a continent
2. unfriendly: hostile; unkind
3. subterranean: existing below the surface of the earth
4. semiannual: occurring twice in a year
5. biennial: happening every two years; a plant with a life cycle of two years
6. aforementioned: that which has been spoken of before
7. inedible: unfit to be eaten
8. inarticulate: unable to speak or clearly express ideas
9. antediluvian: before the Flood; out of date; antiquated
10. involuntary: apart from one's choice or will

If you need further assistance or explanations, feel free to ask!