counter-
pro-
anti-
non-
post-
semi-
The prefix "counter-" could be added to revolution to form "counterrevolution."
You could add the prefix af- to it to make the word affluent.
You could add the prefix non- to it to make the word nonstandard.
"Cost" doesn't have a prefix. You could add the prefix ac- to it to make the word "accost."
You could add the prefix un- to it to make the word unreliable.
You could add the prefix extra- to it to make the word extracurricular.
"Possibility" doesn't have a prefix. You could add the prefix im- to it to make the word impossibility.
endo
You could add the prefix im- to it to make the word impossible.
You could add the prefix ad- to it to make the word advantage.
You could add the prefix sur- to it to make the word surround.
You could add the prefix af- to it to make the word affluent.
You could add the prefix non- to it to make the word nonstandard.
In the word "inform", in- is a prefix. You could add the prefix mis- to it to get misinform.
"Social" doesn't have a prefix. You could add the prefix un- to it to make the word unsocial.
The current prefix is ex-. You could add the prefix in- to it to make the word inexcusable.
The current prefix is im-. You could add the prefix un- to it to make the word unimportant.
"Cost" doesn't have a prefix. You could add the prefix ac- to it to make the word "accost."