After - as in POSTtraumatic stress disorder
the prefix post means after
After, subsequent to.
your fat haw haw
It means "not" as in "not likely."
The prefix post means "after the fact", for example, post war, post game, is when the war is over, when the game is over.
The prefix for postdate is "post-".
The prefix for "board" is "post-".
un- is usually a prefix meaning not
This is usually used to represent Psychology'
usually is not a prefix
# #
Un- is a prefix. It usually means not.