Successor:
The predecessor 'precedes' (or comes before) something; the successor 'succeeds' (or follows) something. Think about the monarchy of a country, or the letters of the alphabet.
the antynom is frown
The antynom to pretty is ugly.
There is no antynom in this word idiots
An antonym (not antynom) for "left out" is "included".
answer
The opposite of "from" is to.
disappear
required
lazy
wide
crime
frown