The word that has only four letters and is the opposite of mean in NICE
nice.....
The opposite of "mean" is "nice." Perhaps the "t" is incorrect.
simple, 6 letters. or easy, 4 letters
The two letters that mean the opposite of full are "e" and "m", representing the word "em" which means empty.
RARE
dull
dear
more
stop
love
They are: MT
Tall