Theory:

Antonyms from the poem "A Poison Tree":
 
Numbers
Words
Antonyms
1.
Angry Calm.
2.
FriendEnemy.
3.
WrathHappiness.
4.
GrowShrink.
5.
BeneathAbove.
6.
BrightDull.
7.
FoeFriend.
 8.
Deceitful Honest.
 
Important!
To know more about antonyms, click here.