The opposite of the opposite of any word is the word itself. So it is submission.* The opposite of submission (giving in) would be domination. There is no real opposite for a submission (something submitted) except the lack of one.
simply "in"
one
One of the antonyms of the word "won't" is will.
not in one word, but does this help? to have an aversion to
One word that means the opposite of disgusting is attractive.
One! Several means two or more, but not many
opposite
Appreciated, for one.
The opposite of the verb to show is to hide, or to conceal.
One such word would be whisper.
A contronym or antagonym is a word that is also it's opposite. For example, Clip can mean "to bind together" or "to separate" Screen can mean 'to show' (a movie) or 'to hide' Cleave can mean to split or to adhere.