0Words that has opposite meanings are called as Antonyms.
1) East = West
2) North = South
3) Good = Bad
4) Poor = Rich
5) Day = Night
6) Happy = Sad
7) Long = Short
8) Easy = Difficult, hard
9) Dry = Wet
10) Soft = Hard
11) Young = Old
12) Dirty = Clean
13) Full = Empty
14) Deep = Shallow
15) Right = Wrong
16) Quiet = Noisy
17) True = Fake
18) Arrival = Departure
19) Honest = Dishonest
20) Dependent = Independent
These were the few antonyms as an example.
