A word that has an opposite meaning to another is known as an antonym. Learning antonyms (as well as synonyms) can really improve your English, both written and spoken. Remember that a rich use of words is more interesting to your readers and listeners.
Add more strings to your bow in our third quiz on Antonyms

1.Amiable

2.Attention

3.Belief

4.Beneficial

5.Careful

6.Changeable

7.Promote

8.Enemy

9.Fierce

10.Invincible