| Letter | Word | Antonym | % Correct |
|---|---|---|---|
| B | Sister | Brother | 100%
|
| N | Far | Near | 97%
|
| Q | Answer | Question | 97%
|
| F | Succeed | Fail | 95%
|
| C | Throw | Catch | 94%
|
| O | Inner | Outter | 94%
|
| A | Below | Above | 93%
|
| E | Hard | Easy | 92%
|
| M | Least | Most | 90%
|
| R | Cooked | Raw | 90%
|
| D | Safe | Dangerous | 89%
|
| L | Cry | Laugh | 89%
|
| P | Whole | Part | 84%
|
| K | Mean | Kind | 81%
|
| J | Grief | Joy | 77%
|
| V | Hero | Villain | 77%
|
| W | Yell | Whisper | 75%
|
| Z | Straight | Zigzag | 74%
|
| U | Ordinary | Unique | 65%
|
| Y | Senior | Youth | 51%
|
| I | Busy | Idle | 50%
|
| S | Often | Seldom | 49%
|
| T | Early | Tardy | 48%
|
| H | Discord | Harmony | 39%
|
| G | Clumsy | Graceful | 28%
|