These seemingly “nonsense” words have pairs of opposites in them

These seemingly “nonsense” words have pairs of opposites in them.

For example:
lshoorntg would be “Long /Short” (LshOorNtG).
If you’ve noticed, the letters in the words are always in the same order.
Get the idea? Great!
Now try these!

1) Wfateirer
2) Grsokuynd
3) Rpoiocrh
4) Frbeoiezle
5) Ppenecinl
6) Wmaomnan
7) Ldaigrhkt
8) Ounvderer
9) Cdilreatny
10) Riwrgohngt